Li ion battery a wɔde sie owia ahoɔden ma 90-95% akwantuo a ɛkɔ baabiara-a ɛyɛ adwuma yie, a nnɛyi LiFePO4 ahodoɔ no nya 2,000-5,000 charge cycles na ɛkura 70-80% tumi mu wɔ mfeɛ 10 a wɔde adi dwuma da biara da akyi. Wɔn adwumayɛ boro kɔbere-acid a wɔde si ananmu no so kɛse wɔ ahoɔden a ɛdɔɔso, nea ɛkɔ mu no mu dɔ, ne nea wɔhwehwɛ sɛ wosiesie no nyinaa mu.
Nanso, saa adwumayɛ yi de adwumayɛ ho ahwehwɛde pɔtee bi ba. Ɔhyew a ɛboro so ma ɔsɛe ntɛmntɛm-nhyehyɛe ahorow a ɛyɛ adwuma boro 95℃F (35℃) betumi ahwere tumi 40% ntɛmntɛm sen nea wɔde sie 50-86℃F (10{14}}30℃) ntam no. U.S. batere akoraeɛ gua no de ahoɔden 9.2 GW kaa ho wɔ afe 2024 nko ara mu, a ɛboro 60% a wɔde dii dwuma wɔ owia-plus-storage nhyehyeɛ mu, a ɛkyerɛ ahotosoɔ a ɛrenya nkɔanim wɔ lithium-ion ahotosoɔ mu ama nkabom a wɔyɛ foforɔ.
Adwumayɛ ho Nsusuwii a Ɛho Hia
Sɛ wɔresɔ li ion battery ahwɛ ama owia ahoɔden a wɔkora so a, metrics titire mmiɛnsa na ɛkyerɛ wiase no mu mmɔdenbɔ ankasa: akwantuo a ɛkɔ baabiara-tu mpɔn, tumi a wɔtumi de di dwuma denam nsuo a ɛkɔ mu no mu dɔ so, ne kyinhyia nkwa tenten.
Round-trip efficiency susuw ahoɔden a wɔhwere wɔ charge-discharge nhyehyɛe no mu. Lithium-ion batere no tumi yɛ adwuma yiye 90-95% bere nyinaa, a ɛkyerɛ sɛ ɛkame ayɛ sɛ owia ahoɔden a wɔakora so nyinaa da so ara wɔ hɔ a wobetumi de adi dwuma. Lead-acid battery, sɛ yɛde toto ho a, ɛyɛ adwuma wɔ 80-85% a ɛyɛ adwuma yiye. Saa nsonsonoeɛ a ɛyɛ ɔha mu nkyekyɛmu 10-15 yi ka bom wɔ kyinhyia mpempem pii mu-lithium nhyehyɛeɛ a ɛyɛ kWh 10 de kWh 9.5 ma yie, berɛ a kɔbere-acid nhyehyɛeɛ a ɛne no sɛ no ma kWh 8.5 pɛ.
Depth of discharge (DoD) gyina hɔ ma battery ahoɔden ɔha biara mu nkyem a wobetumi de adi dwuma dwoodwoo a ɛnsɛe nhyehyɛe no. Lithium-ion batere boa 85-95% DoD, sɛ wɔde toto lead-acid anohyeto a wɔkamfo kyerɛ sɛ ɛyɛ 50% ho a. Lithium batere a ɛyɛ kWh 10 ma ahoɔden a wotumi de di dwuma 8.5-9.5 kWh; 10 kWh lead-acid battery ma 5 kWh pɛ. Saa nsonsonoe yi kyerɛ sɛ wuhia lead-acid tumi mmɔho abien na ama ɛne lithium-ion akorae a etu mpɔn no ahyia.
2024 ATB amanneɛbɔ a ɛfiri NREL kyerɛw sɛ utility-scale lithium-ion nhyehyɛeɛ no kura 85% round-trip efficiency mpo wɔ scale mu, a residential system dodoɔ no ara yɛ adwuma yie 5{9}}10% ɛnam cable run tiawa ne nhyehyeɛ a ɛnyɛ den nti. Battery a wɔde si hɔ a wɔyɛɛ mu nhwehwɛmu wɔ California CAISO grid mu no kyerɛɛ sɛ battery a wɔde charge no yɛ 14.7% wɔ grid load nyinaa mu wɔ owia ahoɔden a ɛsen biara mu wɔ afe 2024 mu, na ɛkora awiabere awoɔ ntoatoasoɔ a ɛboro soɔ so ma anwummerɛ a ɛfiri mu.
Chemistry Nsonsonoe ne Ankasa-Wiase Nsunsuanso
Ɛnyɛ li ion battery a wɔde yɛ owia ahoɔden a wɔkora so ho akwan horow nyinaa na ɛyɛ adwuma pɛpɛɛpɛ. Nnuruyɛ mmienu titire a wɔde sie owia mu-Lithium Iron Phosphate (LiFePO4) ne Nickel Manganese Cobalt (NMC)-de adwumayɛ ho nsɛm a ɛda nsow ma.
LiFePO4 batere abɛyɛ nea wɔpɛ sɛ wɔde sie owia ahoɔden a ɛgyina hɔ firi afe 2022, na ɛkyere bɛboro 70% wɔ atenaeɛ foforɔ a wɔde besisi hɔ. Wɔn ɔhyew a ɛyɛ den no ma kwan ma wɔyɛ adwuma fi -4℃F kosi 140℃F (-20℃to 60℃) a adwumayɛ no nsɛe kɛse. Nnuruyɛ no olivine ahwehwɛ nhyehyɛe no ko tia ntrɛwmu-twetwe nhyɛso a ɛsɛe lithium nnuru afoforo, na ɛboa ma kyinhyia nkwa nna a ɛyɛ kyinhyia 4,000-7,000 ansa na adu 80% tumi.
NMC batere ma ahoɔden a ɛkorɔn-150-220 Wh/kg sɛ wɔde toto LiFePO4 90-120 Wh/kg-a ɛma ɛyɛ hare na ɛyɛ ketewaa. Tesla Powerwall 2 de NMC nnuru dii dwuma, bere a Powerwall 3 dan kɔɔ LiFePO4 so, a ɛkyerɛ sɛ nnwuma nyinaa gye tom sɛ ahobammɔ ne nkwa tenten di ahoɔden a ɛwɔ fie akorae dwumadie mu. NMC batere taa de kyinhyia 1,000-2,000 ma, a ennu LiFePO4 nkwa nna fã.
Benchmark Mineral Intelligence bɔɔ amanneɛ sɛ LiFePO4 cell boɔ yɛ $59 wɔ kWh biara mu wɔ September 2024 mu, sɛ wɔde toto $68.60 ma NMC cells-ɛka ho mfasoɔ a ɛyɛ 16% a ɛma LiFePO4 yɛ ahobanbɔ ne sikasɛm mu mfasoɔ ma owia ahoɔden. Saa boɔ mu nsonsonoeɛ yi so atew afiri bɛboro 30% wɔ afe 2020 mu, ɛfiri sɛ LiFePO4 a wɔyɛ no kɛseɛ no maa nneɛma a wɔyɛ no ho ka so tew.
Kyinhyia Asetra ne Kalenda Onyin
Battery nkwa nna yɛ adwuma wɔ bere nhyehyɛe abien so: cycle nkwa ne kalenda nkwa. Cycle nkwa akontaabu charge-discharge repetitions ansa na tumi no akɔ fam akodu 80% wɔ mfitiase rating. Kalenda nkwa susuw ɔsɛe a efi bere nkutoo mu, a ɛnyɛ nea wɔde di dwuma.
LiFePO4 batere a ɛkorɔn{0}}ɛma 4,000-6,000 kyinhyia wɔ 80% bun mu. Wɔ da biara da-sakre nhyehyɛe a ɛkora mfinimfini-da owia ahoɔden so de di dwuma anwummere no, eyi kyerɛ ase sɛ mfe 11-16 som. Shallower cycling trɛw nkwa nna kɔ akyiri-adwuma ntam 20-80% tebea a charge sen 10-90% betumi de 30-50% cycles pii aka ho denam electrode nhyɛso a ɛso tew so.
Kalenda onyin ba ɛmfa ho sɛnea wɔde di dwuma. Nhwehwɛmu a efi Sandia National Laboratory a ɛhwehwɛɛ data nsɛntitiriw ɔpepem 7 mu no hui sɛ lithium-ion batere sɛe bɛyɛ 2-3% afe biara fi kalenda so onyin nkutoo mu. Battery a ɛtena hɔ a wɔmfa nni dwuma mfe anum no hwere 10-15% tumi ansa na awie kyinhyia biako. Saa nokwasɛm yi ma owia ahoɔden a wɔkora so nhyehyɛe ahorow no yɛ nea sikasɛm mu ahokyere wom kɛse bere a wɔde di dwuma denneennen da biara da sen sɛ wɔde besie ama ahoɔden a wɔde siesie nneɛma nkutoo no.
Ɔhyew a wɔhwɛ so no da adi sɛ ɛho hia ma li ion battery biara a wɔde sie owia ahoɔden. Nhwehwɛmu kyerɛ sɛ batere a ɛyɛ adwuma bere nyinaa wɔ 95℃F (35℃) no sɛe ntɛmntɛm 40-60% sen nea wɔhwɛ so wɔ 77℃F (25℃). Digrii F 15 biara a ɛkɔ soro sen ɔhyew a eye sen biara no bɛyɛ sɛ ɔsɛe no mmɔho abien. Eyi kyerɛkyerɛ nea enti a batere a ɛyɛ papa a wɔde si hɔ no bi ne ɔhyew a wɔde di dwuma anaasɛ wɔde batere gu mmeae a wim tebea hwɛ so.
2024 CAISO Amanneɛbɔ Titiriw no kyerɛw sɛ aguadi batere nhyehyɛe a ɛyɛ adwuma wɔ frequency regulation services-a ɛfa mpɛn pii, fã bi charge-discharge cycles-hyia afe afe tumi a wɔsɛe no fi 1.2-2.1% a egyina atwa yɛn ho ahyia hyew so. Nhyehyɛe ahorow a ɛwɔ onwini nhyehyɛe a eye no nyaa ɔsɛe dodow a ɛba fam bere nyinaa.
Ntotoe a Wɔde Toto Kɔbere-Acid Nnuru a Wɔde Sisi Ho
Lead-acid battery da so ara yɛ nea abu so wɔ owia ahoɔden a wɔde si hɔ a wɔde sikasɛm ho nhyehyɛe-ayɛ ho adwene mu, nanso adwumayɛ mu nsonsonoe atrɛw bere a lithium-ion mfiridwuma nyin na ɛka so tew no.
Lead-acid battery bank a wɔtaa de yɛ owia ahoɔden a wɔde sie no boɔ sua 30-50% ansa na wɔadi kan ayɛ sene lithium-ion tumi a ɛne no sɛ. 10 kWh lead-acid nhyehyɛe betumi agye $5,000-7,000 bere a wɔde toto $10,000-14,000 ma lithium-ion. Nanso, ɛsɛ sɛ wɔsesa batere a wɔde kɔbere ayɛ no mfe 3-5 biara (akyinhyia 500-1,000), bere a lithium-ion nhyehyɛe ahorow no di mfe 10-15. Bɛboro mfe du no, anka wobɛsesa batere a wɔde lead-acid ayɛ no mpɛn 2-3, na wobɛpopa sika a wode asie mfiase no.
Nsonsonoe a ɛwɔ ahoɔden dodow mu no de ahunmu nsɛnnennen ba. Mpɛn pii no, lead-acid battery awotwe de ahoɔden a wotumi de di dwuma te sɛ lithium-ion unit abien. Lead-acid nhyehyɛe no mu duru boro mmɔho 2-2.5 na egye fam baabi kɛse-ade a ɛho hia a ɛsɛ sɛ wosusuw ho ma atrae a wɔde besisi hɔ a kar dan anaa dan a ɛwɔ fam sua.
Ɛsono ahwehwɛde ahorow a ɛfa nsiesie ho kɛse. lead-acid battery a nsuyiri afa mu no hia sɛ wɔhwɛ nsuo dodoɔ ɔsram biara na wɔhohoro terminal no ho. Nsonsonoe a wɔatoto mu no tew nsiesie so nanso ɛho ka yɛ den na ɛma nkwa nna yɛ tiaa. Lithium-ion batere hia titiriw zero daa nsiesie a ɛboro nhyehyɛe softwea a wɔyɛ no bere ne bere mu ne hwɛ a wɔbɛhwɛ sɛ mframa pa bɛkɔ mu.
Adwumayɛ mu mmɔdenbɔ a wɔhwere no ma nsonsonoe ahorow yi yɛ kɛse. Saa nsonsonoeɛ a ɛyɛ 10-15% a ɛda lithium-ion (90-95%) ne lead-acid (80-85%) ntam no kyerɛ sɛ kɔbere-acid nhyehyɛe bi sɛe 1.5-2 kWh wɔ 10 kWh kyinhyia biara mu. Bɛboro 3,650 kyinhyia (mfeɛ 10 a wɔde di dwuma da biara), yei nyinaa yɛ 5,475-7,300 kWh a ɛyera owia ahoɔden-a ɛne mfeɛ 1.5-2 ahoɔden a ɛnyɛ hwee a lithium-ion nhyehyɛeɛ kora so yɛ pɛ.
Ɔhyew Adwumayɛ ne Anohyeto Ahorow
Lithium-ion battery yɛ adwuma wɔ thermal envelope a ɛka adwumayɛ ne nkwa tenten kɛse. Saa anohyeto ahorow yi ntease na ɛkyerɛ nhyehyɛe no ahotoso wɔ wiase tebea ankasa-mu.
Adwumayɛbea a eye sen biara no trɛw digrii F 59-86 (digrii 15-30 ). Wɔ saa kwan yi mu no, batere nya adwumayɛ a wɔahyɛ da ayɛ ne nkwa nna a ɛsen biara. Adwumayɛ sɛe wɔ saa anohyeto ahorow yi akyi, ɛwom sɛ nnɛyi nhyehyɛe ahorow no de ahobammɔ mfiri ahorow a wɔde siw adwumayɛ a asiane wom ano ka ho de.
Ɔhyew a ɛkorɔn-yɛ adwuma ma nnuru a ɛsɛe ade ntɛmntɛm. Sɛ ɛboro digrii F 95 (digrii 35 ) a, emu ahoɔden a ɛko tia no kɔ soro na electrolyte a ɛpaapae ntɛmntɛm. Nhyehyɛeɛ a ɛyɛ adwuma wɔ 104℃F (40℃) a ɛkɔ so daa no tumi nya tumi a ɛyera 50% wɔ mfeɛ 5-7 pɛ mu-nkwa nna a wɔhwɛ kwan sɛ wɔde bɛhyehyɛ nneɛma a wɔayɛ no nwini yie no fã. Asiane no trɛw kɔ akyiri sen sɛ ɛbɛsɛe nkakrankakra; thermal runaway-a cascading overheat reaction-bɛyɛ nea ebetumi aba a ɛboro 140℃F (60℃), ɛwom sɛ batere a wɔde di dwuma yiye nhyehyɛe ahorow siw nkwammoaa kwan sɛ wobedu saa ɔhyew ahorow yi ho de.
Wim tebea a ɛyɛ nwini de nsɛnnennen ahorow ba. Sɛ wobɔ lithium-ion batere a ɛba fam sen 32℃F (0℃) a, ɛde asiane ba lithium plating-dade lithium a ɛwɔ anode no so, a ɛtew tumi so daa na ɛde ahobammɔ ho asiane ba. Nhyehyɛe dodow no ara bi ne charge a wɔbara wɔ freezing ase, ɛwom sɛ mpɛn pii no, nsu a wɔde gu mu no kɔ so yɛ yiye kodu 4℃F (-20℃) a wɔatew tumi so de.
LiFePO4 nnuruyɛ di ɔhyew a ɛboro so ho dwuma yiye sen NMC ahorow. Field data a efi owia ahoɔden a wɔde si hɔ wɔ Arizona (awɔw bere mu dodow a ɛkɔ soro daa boro 110℃F) ne Minnesota (awɔw bere mu lows a ɛba fam sen -20℃F) kyerɛ sɛ LiFePO4 nhyehyɛe ahorow no kura adwumayɛ mu denam ɔhyew ho nhyehyɛe a ɛfata so, bere a NMC nhyehyɛe ahorow no hwehwɛɛ onwini anaa ɔhyew a ano yɛ den kɛse na ama wɔatumi akura nsɛm a wɔahyɛ ato hɔ no mu.
Nnɛyi nneɛma a wɔde si hɔ no nam akwan horow pii so di ɔhyew ho nsɛnnennen ho dwuma. Nneɛma a wɔde si kar dan mu no de onwini foforo di dwuma wɔ ahohuru bere mu asram mu. Batere a wɔde abɔ abɔnten wɔ wim tebea a emu yɛ den mu no bi ne insulation ne active heating/cooling. Asase-fam mu mmeae fi awosu mu ma ɔhyew a ɛyɛ den kɛse, na ɛtew ɔhyew mu nhyɛso so.
Charging Ahoɔhare ne Tumi a Wɔde Ba
Li ion battery a wɔde sie owia ahoɔden gye charge na ɛde ahoɔden ma ntɛmntɛm sen lead-acid alternatives, adwumayɛ mu mfasoɔ a ɛfa owia ahoɔden dwumadie a ɛwɔ awoɔ ntoatoasoɔ a ɛsakra.
Charge acceptance rate-a wɔsusuu sɛ C-rate-kyerɛ sɛnea batere twetwe ahoɔden ntɛmntɛm bere a wɔde toto tumi ho. 1C rate kyerɛ sɛ battery a ɛyɛ 100Ah no charge wɔ 100 amps. Lithium-ion batere taa di 0.5C kosi 1C charge rates ho dwuma dwoodwoo, na ɛma wotumi kyere owia ahoɔden a ɛdɔɔso a ɛwɔ mfinimfini-da no mu ntɛmntɛm. 10 kWh lithium nhyehyɛe betumi agye 5-10 kW ahoɔden a wɔde gye, ahyɛ mu ma koraa wɔ nnɔnhwerew 1-2 mu wɔ owia awo ntoatoaso a ɛsen biara mu.
Lead-acid batere gye charge wɔ 0.1C kosi 0.3C rates-a ɛyɛ brɛoo kɛse. Saa ara na 10 kWh kɔbere-acid nhyehyɛe no bɔ ka wɔ 1-3 kW pɛ, na egye nnɔnhwerew 3{12}}10 na ama watumi adu ne tumi nyinaa ho. Saa anohyeto yi de ɔhaw ahorow ba wɔ bere tiaa bi a owia ahoɔden a ɛdɔɔso sen biara no mu anaasɛ bere a mununkum brɛ nea efi mu ba no ase bere ne bere mu no. Owia ahoɔden a ɛboro so a anka lithium-ion batere bɛkyere no sɛe efisɛ batere a ɛwɔ lead-acid ntumi nnye ntɛmntɛm sɛnea ɛsɛ.
Discharge adwumayɛ ahwehwɛ charging mfaso. Lithium-ion battery de ahoɔden a ɛkorɔn a ɛkɔ so daa ma a enni ahoɔden a ɛkɔ fam anaasɛ tumi a ɛyera. Nhyehyɛe a ne kɛse fata betumi ama ofie mũ nyinaa anya ahoɔden bere a anyinam ahoɔden atwa mu, de mframa a wɔde yɛ adwuma, frigye, ne ɛlɛtrɔnik mfiri adi dwuma bere koro mu no. Lead-acid battery ahorow no nya ahoɔden a ɛkɔ fam wɔ adesoa a emu yɛ duru ase, na ebetumi ama mfiri no agyae anaasɛ ɛbɛtew bere a wɔde di dwuma no so.
Nkɛntɛnso a mfaso wɔ so no da adi bere a nneɛma a wɔhwehwɛ no dɔɔso sen biara no. California data a ɛfiri afe 2024 kyerɛɛ sɛ lithium-ion battery a ɛwɔ CAISO grid no so no, sɛ wɔkyekyɛ mu a, 4,000 MW a ɛfiri mu ba wɔ anwummerɛ a ɛyɛ den-dannan yie firi charge wɔ 10AM-1PM owia dodoɔ mu kɔ discharge wɔ 5PM-9PM ahwehwɛdeɛ surges mu. Saa ahoɔden a ɛkɔ akwan abien a ɛkɔ ntɛmntɛm yi ma lithium-ion batere yɛ nea eye ma owia ahoɔden awo ntoatoaso a ɛba bere ne bere mu no kari pɛ.
Ahobammɔ ho Nsusuwii ne Ɔhyew Ho Dwumadi
Bere a li ion battery a wɔde sie owia ahoɔden ma ɛyɛ adwuma yiye no, ɛhwehwɛ sɛ wɔde si hɔ yiye na wɔhwɛ so yiye na ama wɔahwɛ ahu sɛ ɛyɛ adwuma yiye. Saa ahwehwɛde ahorow yi a wɔte ase no boa ma wosiw ahobammɔ ho nsɛm a ɛntaa nsi nanso ɛyɛ aniberesɛm a ɛtwetwe nsɛm ho amanneɛbɔfo adwene no ano.
Thermal runaway gyina hɔ ma ahobammɔ ho asɛm titiriw. Eyi ba bere a ɔhyew a ɛba wɔ nipadua no mu no boro nea wɔsɛe no so, na ɛkanyan nnuru a ɛyɛ adwuma a ɛkɔ soro a ebetumi ama ogya atɔ no. NMC batere hyia asiane kɛse a ɛma woguan fi ɔhyew mu sen LiFePO4 ahorow esiane wɔn nnuru nti. Nnwumayɛbea nsɛm kyerɛ sɛ ɔhyew mu guankɔbea ahorow si wɔ bɛyɛ lithium-ion nkwammoaa ɔpepem 10 biara mu 1-a ɛntaa nsi nanso ɛnyɛ nea entumi nyɛ yiye.
Battery management systems a ɛyɛ papa (BMS) siw ɔhyew guan a ɛnam ahobammɔ ntoatoaso pii so no ano. Ɔhyew sensor ahorow hwɛ cell anaa module biara so, na sɛ wɔboro thresholds so a, ɛtwa ahoɔden. Voltage monitoring siw overcharging-ade a ɛtaa kanyan ɔhyew nsɛm a esisi no ano. Mprempren anohyeto ahorow siw nsu a ɛtwetwe dodo a ɛma ɔhyew ba emu no ano. Saa nhyehyɛe ahorow yi yɛ adwuma bere nyinaa, na enhia sɛ nea ɔde di dwuma no de ne ho gye mu biara.
Wɔadan gyinapɛn ahorow a wɔde si hɔ sɛnea ɛbɛyɛ a asiane ahorow bɛtew so. Ɔman Ogya Ho Banbɔ Fekuw no NFPA 855 gyinapɛn a wɔayɛ no foforo wɔ afe 2023 mu no hwehwɛ sɛ wɔyɛ nneɛma pɔtee a wɔde siw batere, mframa a wɔde fa mu, ne ogya a wɔde siw ogya ano ma batere akɛse a wɔde besisi hɔ. Atrae nhyehyɛe ahorow hyia ahwehwɛde ahorow a emu nyɛ den pii nanso wonya mfaso fi mframa pa a wɔde ma ne ntetewmu a efi mmeae a wɔtra mu no mu.
LiFePO4 chemistry’s superior thermal stability na ama ne gua so tumidi. Ade no nnyi oxygen bere a ɔhyew nhyɛso-petrol a ɛma ɔhyew guan wɔ NMC batere mu. Field data a efi LiFePO4 nhyehyɛe ɔpepem pii a wɔde ahyɛ mu no kyerɛ sɛ nsɛm a esisi no sua kɛse sɛ wɔde toto NMC a ɛne no sɛ wɔ dwumadie a ɛte saa ara mu ho a.
Nneyɛe a ɛfata a wɔde si hɔ no tew asiane so kɛse. Ɛsɛ sɛ batere kwati owia hann ne ɔhyew a efi mu ba tẽẽ. Mframa a ɛfata siw ɔhyew a ɛbɛboaboa ano ano-ayɛfo dodow no ara kyerɛ ahwehwɛde a ɛba fam koraa a ɛbɛma wɔatumi atwa unit ahorow ho ahyia. Ɛsɛ sɛ nhyehyɛe a wɔde si so no gyina batere mu duru ano (50-70 pounds per kWh) na ɛma mmoa a ɛyɛ den, a ɛyɛ pɛpɛɛpɛ. Electrical connections hwehwɛ torque specifications na wɔasiw loose terminals a ɛde resistance ne ɔhyew ba.
Grid-Scale Adwumayɛ ho Nsɛm
Utility-scale deployments ma real-wiase adwumayɛ data a ɛtrɛw a ɛma lithium-ion tumi yɛ nokware ma owia akorae wɔ scale.
US Energy Information Administration kyerɛw sɛ battery a wɔde sie no boroo 26 GW wɔ December 2024 mu, a nhyehyɛe dodow no ara de lithium-ion chemistry di dwuma. Saa tumi yi bɛboro 60% ne owia mfuo a ɛwɔ afrafra nhyehyɛɛ mu no di nkitaho tẽẽ, na ɛkyerɛ ahotosoɔ wɔ lithium-ion ahotosoɔ mu ma nkabom a wɔyɛ foforɔ.
California di anim wɔ dwumadie mu a 12.5 GW a wɔde ahyɛ mu a ɛyɛ adwuma wɔ CAISO grid so. Saa nhyehyɛe ahorow yi gye sika titiriw wɔ 10AM-2PM bere a owia awo ntoatoaso no kɔ soro no, afei ɛbɔ wɔ 5PM-9PM anwummere dodow a ɛsen biara mu. Wɔ afe 2024 mu no, batere a wɔde charge no gyinaa hɔ maa 14.7% wɔ grid adesoa nyinaa mu wɔ awiabere nnɔnhwerew mu-afã kɛse bi a ɛkyerɛ sɛ battery ahorow no de nsiyɛ twetwe owia ahoɔden a ɛboro so a anka wɔbɛtew so.
Gemini Solar Plus Storage Project a ɛwɔ Nevada a wɔwiee wɔ July 2024 mu no, ɛka owia ahoɔden afuo a ɛwɔ ahoɔden 690 MW ne batere nhyehyɛeɛ a ɛwɔ ahoɔden 380 MW/1,416 MWh bom. Saa adwumayɛbea yi kyerɛ sɛ lithium-ion tumi de nnɔnhwerew pii sie owia awo ntoatoaso ma bere-sesa delivery. Nnwuma a wɔde afrafra a ɛte saa ara wɔ New Mexico ne Arizona kyerɛ sɛ ɛyɛ adwuma daa wɔ wim tebea mmeae ne adwumayɛ ho akwan horow nyinaa mu.
Round-akwantuo a ɛyɛ adwuma yie susudua a ɛfiri grid-scale deployments mu no si laboratory projections so dua. NREL 2024 Afe afe Mfiridwuma Mfitiaseɛ no bɔ amanneɛ sɛ 85% round-akwantuo a ɛyɛ adwuma yie ma utility systems-ɛba fam kakra sene residential installations ɛnam transmission kwan tenten ne ahoɔden nsakraeɛ anammɔn foforɔ nti, nanso ɛda so ara di lithium-ion’s high efficiency wɔ nsenia nyinaa mu.
Degradation tracking a efi adwumayɛ nhyehyɛe ahorow mu ma ahotoso wɔ nkwa tenten ho nkɔmhyɛ ahorow mu. Battery nhyehyɛe a ɛyɛ adwuma wɔ California frequency regulation gua so no kyerɛɛ 1.2-2.1% afe afe tumi fade-wiɛ wɔ manufacturer warranties a ɛtaa hyɛ bɔ sɛ 70-80% tumi kura mu wɔ mfeɛ 10 akyi. Nneɛma a wɔde si hɔ a wɔhwɛ ɔhyew so no nyaa ɔsɛe dodow bere nyinaa wɔ saa beae yi ase awiei.
Sikasɛm mu Adwumayɛ ne Nhyehyɛe Ho Ka
Lithium-ion batere ho ka so atew 85% firi afe 2010, sɛdeɛ Amanaman Ntam Ahoɔden Dwumadibea kyerɛ no, na ɛma owia-plus-akoraeɛ no ayɛ sikasɛm mu mfasoɔ kɛseɛ ama atenaeɛ ne aguadiɛ mu dwumadie.
Ɛde besi afe 2024 no, lithium-ion battery a wɔde si hɔ wɔ atrae no fi $12,000-20,000 ma nhyehyɛe ahorow a ɛma 10-15 kWh tumi a wotumi de di dwuma. Federal investment tow credit no tua 30% wɔ installation ho ka mu bere a wɔde ka owia ahoɔden panels ho no, na ɛtew ɛka a etu mpɔn so kɔ $8,400-14,000. Aman pii de nkannyan foforo ma-California SGIP nhyehyɛe ne New York NYSERDA nhyehyɛe ahorow no de sika foforo ma.
Levelized cost of storage (LCOS)-nkwa nna nyinaa ka a wɔakyekyɛ mu denam ahoɔden a wɔde di dwuma so-ɛboa lithium-ion ɛmfa ho sɛ ɛka a wɔbɔ ansa na wɔayɛ no kɛse no. Lithium nhyehyɛe a ne bo yɛ dɔla 15,000 a ɛde kyinhyia 5,000 ma wɔ kWh 12 wɔ kyinhyia biara mu no sie kWh 60,000 wɔ ne nkwa nna nyinaa mu, na ɛma wonya LCOS a ɛyɛ dɔla 0.25 wɔ kWh biara mu. $7,000 lead-acid nhyehyɛe a ɛde cycles 800 ma wɔ 6 kWh (50% DoD wɔ 12 kWh tumi so) sie 4,800 kWh pɛ, ma LCOS a ɛyɛ $1.46 wɔ kWh biara mu-ɛkame ayɛ sɛ ɛboro so mpɛn asia.
Bere{0}}de-de anyinam ahoɔden di dwuma no ma sikasɛm mu mfaso tu mpɔn. Guadidan a ɛwɔ rate spreads kɛse wɔ peak ne off{3}}peak bere ntam no ma arbitrage hokwan ahorow ba. Sɛ wode batere a owia ahoɔden a ɛwɔ mfinimfini-da bo yɛ $0.10-0.15 wɔ kWh biara mu na ɛbɔ batere wɔ anwummere bere a ɛyɛ den sen biara a ne bo yɛ $0.30-0.45 wɔ kWh biara mu a, ɛma wonya $0.15-0.30 wɔ kWh biara mu wɔ ɛka a wɔkwati mu. Da biara da sakre nhyehyɛe a ɛkora $0.20 wɔ kWh biara so wɔ kWh 10 so no ma wɔkora $730 afe biara.
Virtual power plant nhyehyɛe ahorow ma wonya sika foforo. Nnwumakuw te sɛ Green Mountain Power de batere nhyehyɛe ahorow ma adetɔfo, na wɔde sika a wɔde tua ho ka ma de sesa grid nnwuma wɔ bere a nsɛm a wɔhwehwɛ kɛse no mu. Saa nhyehyɛe ahorow yi ma nhyehyɛe no sikasɛm tu mpɔn bere a ɛma grid ahotoso yɛ kɛse.
Ɛka a ɛrekɔ fam no kɔ so. BloombergNEF kyerɛ sɛ utility-scale battery ho ka bɛkɔ fam 40% bio wɔ afe 2030 mu bere a manufacturing scales ne mfiridwuma retu mpɔn no. Mpɛn pii no, atrae ho ka di nneɛma a wɔde di dwuma ho ka a ɛkɔ so no akyi mfe 2-3, na ɛkyerɛ sɛ nneɛma bo bɛkɔ so anya nkɔso wɔ yɛn anim.
Nkabom a ɛne Solar Panel Systems
Li ion battery a wɔde sie owia ahoɔden ne owia ahoɔden a wɔde sie no bom yiye, nanso nhyehyɛe no nhyehyɛe nya adwumayɛ ne nkwa tenten so nkɛntɛnso.
Ne kɛse a ɛfata ma owia ahoɔden a wɔde yɛ adwuma, nneɛma a wɔkora so, ne nea wɔde di dwuma wɔ fie no kari pɛ. Batere a ɛsõ boro so no fã bi kyinhyia, na ɛma nkwa nna kyɛ nanso ɛma ɛka a wɔbɔ ansa na wɔadi kan no yɛ kɛse. Nhyehyɛe ahorow a ne kɛse sua no kyinhyia kɔ akyiri na ɛtaa, na ɛtew nkwa tenten so. Ɔkwan a wɔtaa fa so yɛ battery ahoɔden kɛse ma ɛkora owia ahoɔden a wɔyɛ da biara da no 60-80%, hwɛ hu sɛ wɔde bedi dwuma a adwennwen pii nni mu.
Inverter a wɔpaw no ho hia. AC-coupled systems de owia ne battery inverters a ɛsono emu biara di dwuma, na ɛma wotumi yɛ nsakrae na ɛnyɛ den sɛ wɔbɛsan asiesie owia ahoɔden a ɛwɔ hɔ dedaw no. DC-coupled systems de batere bata owia inverter no ho ansa na wɔadan AC, na ɛtew nsakraeɛ mu adehwereɛ so ma 2-3% a ɛkorɔn wɔ ne nyinaa mu. Hybrid inverters a ɛka akwan abien no nyinaa bom no yɛ nea eye ma sɛnea wɔde di dwuma pɔtee.
Charge controller nhyehyɛe nya nkwa tenten so nkɛntɛnso. Sɛ wɔto tebea a wɔde bɔ ka no ano hye kɔ 80-90% sen sɛ ɛbɛyɛ 100% a, ɛma kyinhyia nkwa nna trɛw wɔ ntease mu, ɛwom sɛ ɛho ka yɛ tumi a ɛwɔ hɔ no de. Nhyehyɛe dodow no ara a ɛyɛ papa ma kwan ma wɔde sikatua anohyeto a wotumi hyehyɛ-wɔn a wɔde di dwuma wɔ atrae a wɔde tumi a wɔde sie di kan no betumi agye nkwa nna tiaa atom ama tumi a ɛsen biara, bere a da biara da sakre nhyehyɛe ahorow no nya mfaso fi anohyeto ahorow a ɛyɛ nea wɔkora so no mu.
Batere a wɔde bɛhyɛ mu ho nsusuwii trɛw kɔ akyiri sen ɔhyew a wɔhwɛ so. Ɔkwan a ɛda inverter no ntam no ka waya kɛseɛ ne ahoɔden a ɛyera-installations a ɛma saa mmirikatuo yi brɛ aseɛ no ma adwumayɛ tu mpɔn. Mpɔtam hɔ adansi ho mmara betumi asiw mmeae a wɔbɛpaw, titiriw wɔ nhyehyɛe akɛse a ɛhwehwɛ sɛ wɔde ogya-rated enclosures.
Grid-connected versus off-grid nhyehyeɛ no de ahwehwɛdeɛ ahodoɔ ma. Off-grid nhyehyɛe hwehwɛ sɛ batere de ahoɔden nyinaa ma wɔ owia bere a ɛba fam mu, na ɛho hia sɛ wɔde ahoɔden kɛse na ebetumi agye nsu a ɛkɔ mu kyinhyia a emu dɔ atom. Grid-nhyehyɛeɛ a ɛka ho no tumi twe afiri grid no mu wɔ berɛ a ɛho ayɛ na, na ɛma batere nketewa yɛ adwuma wɔ akyirikyiri a ɛyɛ papa.
Nsiesiei a Wɔhwehwɛ ne Nhyehyɛe a Wɔhwɛ So
Nea ɛnte sɛ lead-acid battery a ɛhwehwɛ sɛ wɔhwɛ so yiye daa no, li ion battery a wɔde sie owia ahoɔden titiriw hia software-a egyina so hwɛ ne honam fam nhwehwɛmu a wɔyɛ no bere ne bere mu.
Nnɛyi instɔlehyɛn ahorow no bi ne nhyehyɛe ahorow a wɔde hwɛ nneɛma so a wotumi fa smartphone apps anaa wɛb portals so kɔ hɔ. Eyinom kyerɛ bere ankasa -bere tebea a charge, da biara da ahoɔden a ɛsen, ne nhyehyɛe akwahosan metrics. Saa data yi a wɔbɛsan ahwɛ mu dapɛn biara no boa ma wohu anomalies ansa na abɛyɛ ɔhaw-tumi a ɛkɔ fam mpofirim, ɔhyew akenkan a ɛyɛ soronko, anaa nsakrae a ɛba wɔ adwumayɛ mu a ɛfata sɛ wɔyɛ nhwehwɛmu.
Battery management systems yɛ nhwehwɛmu a ɛkɔ so, nanso ɛsɛ sɛ wɔn a wɔde di dwuma no hwɛ sɛ ɛyɛ adwuma yiye. Ɛsɛ sɛ ɔhyew akenkan kɔ so tra baabi a wɔakyerɛ (mpɛn pii no ɛyɛ 50-95℃F). Ɛsɛ sɛ voltage ne current data bere a wɔrebɔ charge ne dischargement no ne nhyehyɛe a wɔhwɛ kwan a egyina owia ahoɔden a wɔyɛ ne ofie a wɔde di dwuma so no hyia. Nhyehyɛe pii bɔ wɔn a wɔde di dwuma no kɔkɔ wɔ ɔhaw ahorow a wɔahu ho, ɛwom sɛ sɛ wohwɛ tebea no daa a, ɛma wohu sɛ kɔkɔbɔ ahorow no nnyae de.
Honam fam nhwehwɛmu asram 3-6 biara boa ma nsɛm nketenkete ntumi nkɔ soro. Hwɛ anyinam ahoɔden nkitahodi nyinaa sɛ ɛyɛ looseness-vibration anaa thermal expansion betumi ayɛ adwuma terminals ayɛ loose wɔ asram pii mu. Hwɛ sɛ mframa a ɛfata wɔ hɔ- nneɛma a wɔboaboa ano wɔ baabi a ɛbɛn batere no betumi asiw mframa a ɛkɔ mu no kwan. Hwehwɛ nsɛnkyerɛnne a ɛkyerɛ sɛ nsu akɔ mu, titiriw wɔ mmeae a wɔde kar sisi a wim tebea mu nsɔano betumi asɛe.
Firmware updates ma system adwumayɛ tu mpɔn bere a wɔn a wɔyɛ no siesie algorithms no. System dodow no ara bɔ wɔn a wɔde di dwuma no amanneɛ bere a updates wɔ hɔ, ɛwom sɛ ebinom de updates di dwuma ɔtopae de. Saa updates yi betumi ama charge efficiency atu mpɔn, ama battery management atu mpɔn, anaasɛ ɛde nneɛma foforo te sɛ demand response integration aka ho.
Adwumayɛfoɔ nhwehwɛmu mfeɛ 2-3 biara ma wonya nhwehwɛmu a edi mũ a ɛboro nea ɔde di dwuma no tumi so. Mfiridwumayɛfo susuw adwumayɛ ho nkyerɛkyerɛmu a ɛkɔ akyiri, wɔhwɛ sɛnea ahobammɔ nhyehyɛe no yɛ adwuma, na wohu sɛnea nneɛma bɛsɛe a ɛkyerɛ sɛ nneɛma a ɛwom no di huammɔ a ɛreba. Ɛka ketewaa bi a wɔbɔ wɔ nhwehwɛmu ahorow yi ho (a mpɛn pii no ɛyɛ dɔla 200-400) yɛ insurance a ɛfata ma nhyehyɛe ahorow a ne bo yɛ dɔla 12,000-20,000.
Daakye Adwumayɛ mu Nkɔso
Nhwehwɛmu ne nkɔsoɔ a ɛrekɔ so no kɔ so ma lithium-ion adwumayɛ kɔ anim ma owia ahoɔden.
Batere a ɛyɛ den-tebea de nneɛma a ɛyɛ den si nsu electrolytes ananmu, na eyi asiane ahorow a ɛma ɔhyew guan fi hɔ bere a ebetumi ama ahoɔden dodow mmɔho abien. Nnwumayɛfoɔ dodoɔ bi kyerɛ sɛ wɔbɛtumi atɔn wɔ afe 2026-2028 mu ama stationary storage applications. Saa batere yi betumi atew nhyehyɛe no anammɔn so fã bere a ɛma ahobammɔ a ɛwɔ hɔ no atu mpɔn no.
Silicon anodes de silicon-carbon composites si atetesɛm graphite ananmu, na ɛma ahoɔden dodow kɔ soro 20-40%. Nnwumayɛfoɔ dodoɔ bi abɔ amanneɛ sɛ silicon-anode battery bɛhyɛn adwumayɛ mu wɔ afe 2025-2026 mu, mfitiaseɛ no na ɛwɔ anyinam ahoɔden kar mu nanso ɛtrɛ ntɛmntɛm kɔ stationary storage sɛ production scales.
Battery management algorithms a ɛkɔ anim a wɔde artificial intelligence di dwuma no ma charge nhyehyɛe yɛ papa a egyina wim tebea, mfaso dodow, ne sɛnea wɔde di dwuma ho abakɔsɛm so. Saa nhyehyɛe ahorow yi sua ofie nhyehyɛe na wɔhyɛ nhyehyɛe a eye sen biara a wɔde bɛbɔ batere-discharge ho nkɔm na ama batere nkwa nna ayɛ kɛse bere a ɛtew anyinam ahoɔden ho ka so. Nneɛma a wɔde dii dwuma mfiase no kyerɛ nkɔso 5-10% wɔ battery nkwa tenten ne sikasɛm mu mfaso mu.
Nea ɛto so abien-nkwa batere nhyehyɛe ahorow san de anyinam ahoɔden kar batere di dwuma ma wɔde sie baabiara. EV batere kura tumi 70-80% bere a wɔakɔ pɛnhyen afi kar ahorow-a ɛnnɔɔso sɛ wɔde di dwuma wɔ kar mu nanso ɛfata koraa ma owia ahoɔden a wɔde sie. Saa nkwa a ɛtɔ so mmienu nhyehyɛeɛ yi boɔ sua 30-50% sene batere foforɔ berɛ a ɛde mfeɛ 5-10 foforɔ som ma wɔ dwumadie a ɛnyɛ den pii a ɛgyina hɔ.
Sodium-ion batere de ɔkwan foforo a lithium- nnim a wɔde nneɛma pii di dwuma ma. Bere a mprempren sodium-ion mfiridwuma de ahoɔden a ɛba fam ne nea ɛyɛ adwuma yiye ma sen lithium-ion no, nkɔso a ɛkɔ so no de n’ani si nneɛma a wɔkora so a egyina hɔ so a ne kɛse ne emu duru ho nhia pii sen ɛka. Sodium-ion batere betumi atew nneɛma a wɔde yɛ adwuma no ho ka so 30% bere a wɔayɛ no nsenia no.
Nsɛm a Wɔtaa Bisa
Bere tenten ahe na lithium-ion batere di ankasa wɔ owia ahoɔden a wɔde di dwuma da biara da mu?
Quality LiFePO4 battery taa de mfe 10-15 da biara da sakre ansa na adu 80% tumi. Eyi fa no sɛ ɔhyew a wɔhwɛ so yiye (wɔma batere no kɔ soro wɔ digrii F 50-95 ntam) na wɔkwati sɛ wɔbɛtwe nsu a emu dɔ akɔ fam sen 10-20% tebea a wɔde charge. Nhyehyɛe ahorow a wɔde sakre tu pɛnkoro da biara wɔ 80% bun a wɔde gu mu no taa nya mfe 12-14 som, a egyina 4,000-5,000 kyinhyia ratings ne 2-3% afe afe kalenda onyin so.
So metumi de lithium-ion batere aka me solar panel nhyehyɛe a ɛwɔ hɔ dedaw no ho?
Yiw, ɛnam AC-coupled battery systems a ɛka wo fie anyinam ahoɔden panel ho sen sɛ ɛbɛka owia inverter no so. Saa retrofit kwan yi ne owia ahoɔden a wɔde si hɔ dedaw ne battery brand dodow no ara yɛ adwuma. DC-coupled systems hwehwɛ sɛ wɔde owia inverter a ɛne no hyia anaasɛ wɔsesa nanso ɛma adwumayɛ a ɛkorɔn kakra. Adwumayɛfoɔ nhwehwɛmu na ɛkyerɛ ɔkwan a ɛyɛ papa a egyina wo mprempren nnwinnadeɛ so.
So lithium-ion batere yɛ adwuma bere a anyinam ahoɔden atwa?
Batere a wɔde inverter a ɛfata abɔ mu no ma ahoɔden a ɛboa bere a wɔatwa no. Nanso, standard grid-tied solar inverters no to mu bere a wɔatwa esiane ahobammɔ nti, sɛ batere wɔ hɔ mpo a. Backup-tumi nhyehyɛe ahorow hwehwɛ inverter ahorow pɔtee ne automatic transfer switches a ɛbɛma wo fie atew afi grid no ho bere a battery atɔ bere a ɛma kwan ma battery no agyae. Ɛnyɛ owia-plus-storage systems nyinaa na ɛka saa tumi yi ho-hwɛ sɛ backup dwumadie yɛ nokware sɛ ntɛmpɛ ahoɔden yɛ adeɛ a ɛho hia a.
So lithium-ion batere yɛ nea asiane biara nni ho sɛ wɔde besisi fie?
Nnɛyi LiFePO4 batere ahorow no yɛ nea ahobammɔ wom koraa bere a wɔde ahyɛ mu yiye na wɔahwɛ so yiye no. Battery management systems a wɔasisi-wɔ mu no siw charge a ɛboro so, overdischarge, ne ɔhyew a ɛyɛ hu ano. Ɔhyew a ɛguan no si wɔ bɛyɛ nkwammoaa ɔpepem 10 biara mu 1 mu-ɛba fam koraa sen kɔbere-acid batere ho asiane a efi hydrogen a ɛpae a wɔtow-gasing mu ba. Akwankyerɛ a ɛfa afiri a wɔde bɛhyɛ mu a wodi akyi ne nnwinnade a wɔagye atom a wode bedi dwuma no ma asiane a ɛba fam dedaw-tew so bio.