Esiane nsakrae a ɛkɔ so wɔ wiase nyinaa ahoɔden nhyehyɛe mu ne ahoɔden a wɔyɛ no foforo nkɔso ntɛmntɛm nti, .ahoɔden a wɔkora somfiridwuma reyɛ de nkakrankakra abɛyɛ mmoa a ɛho hia ma ahoɔden mu nsakrae na ɛde daakye sikasɛm mu nkɔso aba.
Nnianim asɛm a ɛfa Energy Storage Battery Technology ho
▲Ahoɔden a wɔsakra, nea wɔkora so ne nea wɔde di dwuma
▲Ahoɔden a Wɔkora So Mfiridwuma mu Nkyekyɛmu ne Nea Wɔde Di Dwuma
▲Batere a Wɔde Siesie Ahoɔden Ho Nsɛm a Wɔaka abom
▲Adwumayɛ nnyinasosɛm ne ahoɔden a wɔkora so batere
▲Adwumayɛ ho nsɛnkyerɛnne ne nsɛmfua a ɛfa ho a ɛfa ahoɔden a wɔkora so batere ho
Ahoɔden ne tumi titiriw a ɛkanyan wiase no ne ade titiriw a adesamma asetra gyina so ma nkɔso. Efi ogya a wɔde dii dwuma mfiase no so kosi nnɛyi anyinam ahoɔden so no, ahoɔden a wɔanya ne sɛnea wɔde di dwuma no ama anibuei anya nkɔso na ayɛ yɛn mprempren asetra nhyehyɛe.
Esiane sɛ wiase nyinaa ahoɔden a wɔhwehwɛ no kɔ so nya nkɔanim ne ahoɔden a wɔyɛ no foforo a ɛrenya nkɔso ntɛmntɛm nti, ahoɔden a wɔkora so batere mfiridwuma apue na abɛyɛ ahoɔden adwumayɛbea no odum titiriw. Batere a wɔde sie ahoɔden betumi akora ahoɔden a ɛba bere ne bere mu te sɛ mframa ne owia ahoɔden so yiye na wɔayi afi hɔ wɔ bere a wɔhwehwɛ ahoɔden kɛse mu, na ama ahoɔden a wɔde ma no agyina pintinn. Ɛnyɛ sɛ saa mfiridwuma yi brɛ ahotoso a wɔde to atetesɛm mu pɛtro a efi abo mu so nko na mmom ɛma ahotoso a ɛho hia a ɛbɛma wɔanya mframa bɔne a ɛba fam-na ahoɔden nhyehyɛe a ɛtra hɔ daa.
Nkɔsoɔ a ɛwɔ ahoɔden a wɔkora so batere mfiridwuma so, ɛfiri atetesɛm kɔbere-acid batere so kɔ nnɛyi lithium{1}}ion batere so, ne afei kɔsi batere a ɛyɛ den-tebea batere a ɛrepue ne sodium{3}}ion batere so no, rebubu mfiridwuma mu nsɛnnennen mu bere nyinaa. Ɛdenam ahoɔden dodow a ɛkɔ anim, nkwa nna a wɔtrɛw, ne ahobammɔ a wɔma ɛkɔ anim so no, ahoɔden a wɔkora so batere ada anidaso a ɛtrɛw adi sɛ wɔde bedi dwuma wɔ mmeae te sɛ ofie ahoɔden a wɔkora so, akwantu, ne grid ho mmara. Yebetumi aka sɛ ɛnyɛ sɛ ahoɔden a wɔkora so batere mfiridwuma yɛ ade titiriw a ɛma ahoɔden nhyehyɛe mu nsakrae a aba mprempren no nko na mmom ɛyɛ daakye smart grids ne ahoɔden nhyehyɛe a wɔakyekyɛ no mu ade titiriw nso.
Lithium-based battery ahoɔden a wɔkora so mfiridwuma
▲Lithium-ion batere nhyehyɛe ne adwumayɛ nnyinasosɛm
▲Lithium-ion batere cathode nneɛma
▲Lithium-ion batere anode nneɛma
▲Lithium-ion batere mu ahoɔdennuru
▲Lithium-ion batere ho nhyehyɛe ne ne yɛ
Wɔ afe 1970 mu no, M. S. Whittingham a ɔwɔ ExxonMobil yɛɛ lithium-ion batere a edi kan. Ɔde titanium disulfide ne metallic lithium dii dwuma sɛ electrode a ɛyɛ papa ne nea enye. Bere a wɔrebɔ charge na wɔreyi afi mu no, wɔkɔ so di dade lithium na wɔyɛ wɔ electrode a enye no so, bere a titanium disulfide kɔ so de lithium ions hyɛ electrode a ɛyɛ papa no mu na eyi fi mu. Saa akwan mmienu yi tumi dane wɔ batere no nkwa nna nyinaa mu, na ɛnam so yɛ lithium-ion batere a ɛtɔ so mmienu a ne ahoɔden yɛ 2V.Wɔ afe 1982 mu no, R. R. Agarwal ne J. R. Selman a wɔwɔ Illinois Mfiridwuma Asoɛeɛ no hunuu sɛ lithium ions wɔ su a ɛma ɛkɔ graphite mu, adeyɛ a ɛyɛ ntɛmntɛm na ɛtumi dane...Efi berɛ a wɔhyehyɛɛ no, lithium-ion battery ahorow no afa nhwehwɛmu, nkɔso, ne adannandi nhyehyɛe bi mu. Wɔn adwumayɛ a ɛkorɔn na ɛyɛ mmerɛw nti, wɔrehyɛn nnwuma ahorow mu kɛse, efi 3C nneɛma te sɛ telefon a wokura kyin ne tablɛt so kosi ahoɔden ahoɔden nnwuma te sɛ anyinam ahoɔden kar ne ahoɔden a wɔkora so akɛse te sɛ photovoltaics ne mframa ahoɔden so, na ɛrenya asetra mu nkɛntɛnso kɛse.
Dɛn ne batere?
▲Battery Nkɔsoɔ Abakɔsɛm
▲Nnianim asɛm a ɛfa Lithium-ion Batere ho
▲Nneɛma a ɛwɔ lithium-ion batere mu
▲Nneɛma atitiriw a ɛwɔ lithium-ion batere mu
Battery yɛ ahoɔden fibea bi. Wɔtaa kyekyɛ tumi fibea ahorow mu yɛ no honam fam tumi fibea ne nnuru mu ahoɔden fibea. Honam fam ahoɔden fibea ahorow bi ne mfiri a wɔde yɛ owia ahoɔden, mfiri a ɛma anyinam ahoɔden a ɛyɛ hyew, mfiri a ɛma anyinam ahoɔden a ɛyɛ hyew ne nsu mu ahoɔden, ne nea ɛkeka ho; bere a nnuru mu ahoɔden fibea kyerɛ mfiri a ɛma anyinam ahoɔden a ebetumi adan nnuru ahoɔden tẽẽ ayɛ no anyinam ahoɔden, kyerɛ sɛ, nnuru batere wɔ ntease a ɛkɔ akyiri mu, anaasɛ batere ara kwa.
Batere nhyehyɛe ahorow no anya nkɔso wɔ awo ntoatoaso anan mu: lead-acid batere, nickel-cadmium batere, nickel-metal hydride batere, ne lithium-ion batere. Batere adwumayɛ akɔ so atu mpɔn, na nnipa ntease a wɔwɔ wɔ batere nhyehyɛe ho no mu ayɛ den. Mprempren, lithium-ion batere ne batere nhyehyɛe a ɛyɛ adwuma yiye na ɛyɛ ahoɔden-a ɛho hia sen biara, a egyina hɔ ma nnipa batere ho nhwehwɛmu ne mfiridwuma a ɛkorɔn sen biara.
Nhwehwɛmu ne Nkɔso Abakɔsɛm a ɛfa Lithium Iron Phosphate Nneɛma ho
▲Nkɔso abakɔsɛm a ɛfa lithium iron phosphate nneɛma ho
▲Patent tebea a ɛfa lithium dade phosphate ho
▲Nhyehyɛe ne adwumayɛ ho nhwehwɛmu a ɛfa lithium dade phosphate nneɛma ho
Lithium dadeɛ phosphate (LiFeP, LFP, a wɔsan frɛ no lithium dadeɛ phosphate anaa lithium dadeɛ phosphate) yɛ cathode adeɛ a wɔde di dwuma wɔ lithium-ion batere mu. Nea ɛda nsow ne sɛ nneɛma a ɛsom bo te sɛ cobalt ne nickel nni hɔ, nneɛma a wɔde yɛ nneɛma bo a ɛba fam, ne phosphorus, lithium, ne dade a ɛdɔɔso wɔ Asase so, a ebetumi adi gua so ahwehwɛde a ɛboro tɔn ɔpepem biako afe biara ho dwuma. Sɛ́ cathode ade no, lithium dade phosphate wɔ adwumayɛ ahoɔden a ɛkɔ fam (3.2V), tumi pɔtee a ɛkorɔn (170mA·h/g), ahoɔden a ɛkɔ soro a ɛtwetwe, tumi a ɛbɔ ntɛmntɛm, nkwa nna tenten a ɛkyinkyin, ne gyinabea pa wɔ ɔhyew a ɛkɔ soro ne ɔhyew a ɛkɔ soro tebea horow mu.
Mfiri a wɔde yɛ nneɛma a wɔde yɛ lithium iron phosphate nneɛma
▲Production Nnwinnade Ahwehwɛde:;Mixing Nnwinnade;Drying Nnwinnade;Sintering Nnwinnade,;Crushing Nnwinnade; Nnwinnade a Wɔde Hwɛ Nneɛma So; Nitrogen Generator;Nnwinnade a Wɔde Gu Nneɛma Mu.
Sɛ wɔde lithium iron phosphate (LFP) cathode nneɛma di dwuma wɔ lithium-ion battery yɛ mu a, ahwehwɛde ahorow a ɛfa ne ho tew, ne fã, ne efĩ ho no yɛ katee yiye. Sɛ nhwɛsoɔ no, sɛ oxidation℃a ɛwɔ divalent iron mu wɔ LFP mu no du 1% a, tumi pɔtee no tumi so tew bɛboro 30%. Eyi te saa efisɛ dade a ɛyɛ trivalent foforo a wɔayɛ no kata LFP no ani, na ɛyɛ ade a ɛyɛ adwuma a esiw emu nneyɛe foforo ano. Sɛ wɔayɛ LFP oxidized dedaw a, akwan a wɔfa so tew so akyiri yi no ntumi mma LFP efisɛ lithium ions a ɛwɔ raw material no mu no ayera dedaw.
Nsiesiei a wɔde yɛ lithium dade phosphate nneɛma denam ferrous oxalate kwan so
▲Nnyinasosɛm a ɛfa nneɛma a wɔde bom yɛ adwuma ho
▲Nneɛma titiriw a wɔde yɛ nneɛma a wɔde yɛ nneɛma
▲Nneɛma a wɔde yɛ nneɛma a wɔde bom yɛ adwuma
▲Nneɛma a wɔde ayɛ adwuma no adwumayɛ
Wɔfrɛ ɔkwan a wɔfa so yɛ lithium iron phosphate a wɔde ferrous oxalate yɛ ade a wɔde yɛ nneɛma no sɛ ferrous oxalate kwan (anaasɛ ferrous kwan kɛkɛ). Mprempren, ferrous oxalate kwan no ne ɔkwan ne ɔkwan a wɔfa so yɛ no kɛse wɔ China, na wɔn a wɔyɛ wɔ ɔman no mu bɛboro fã na wɔde di dwuma. Mfaso titiriw a ɛwɔ so ne nneɛma a wɔde yɛ nneɛma ho ka a ɛba fam, ɔkwan a ɛyɛ mmerɛw, ne nneɛma a wɔde yɛ no dodow a ɛnyɛ den sɛ wobedi so.
Lithium iron phosphate nneɛma a wɔyɛ denam carbothermal reduction so
▲Nnyinasosɛm a ɛfa nneɛma a wɔde bom yɛ adwuma ho
▲Nneɛma titiriw a wɔde yɛ nneɛma a wɔde yɛ nneɛma
▲Nneɛma a wɔde yɛ nneɛma a wɔde bom yɛ adwuma
▲Nneɛma a wɔde ayɛ adwuma no adwumayɛ
Wɔ wɔn a wɔyɛ lithium iron phosphate (LiFePO4) nneɛma mu no, mprempren ɔkwan a wɔfa so tew carbothermal so no ne mfiridwuma a ɛto so abien a wɔde di dwuma kɛse wɔ ferrous oxalate kwan no akyi. Nea wɔde yɛ no titiriw ne ferric iron (Fe2PO4), a iron phosphate (Fe2PO4) ne iron oxide (Fe2O3) ka ho. Wɔ adeyɛ no mu no, carbon (C) ne carbon monoxide (C2O3) tew ferric iron (Fe2PO4) so ma ɛbɛyɛ ferrous iron (Fe2+), a afei ɛkɔ ahwehwɛ lattice no mu, na ɛyɛ ahwehwɛ nhyehyɛe a ɛyɛ lithium iron phosphate (LiFePO4).
Mfaso a ɛwɔ ɔkwan a wɔfa so tew carbothermal so ne sɛ enhia sɛ wosusuw oxidation a ɛwɔ nneɛma a wɔde yɛ no mu bere a wɔreyɛ ho adwuma no; wobetumi de akwan horow a wɔfa so frafra adi dwuma de ayɛ nneɛma a wɔde yɛ nneɛma no ho adwuma na ama wɔanya tebea a wɔpɛ sɛ wɔpete no. Wɔ ɔhyew a ɛkɔ soro bere mu nkutoo na carbon brɛ ferric dade ase ma ɛbɛyɛ dade a ɛyɛ dade, na ɛyɛ lithium iron phosphate, enti wɔtoo din carbothermal reduction kwan no. Carbothermal reduction kwan no nya anammɔn baako-reduction, ɛtew gas a ɛba no so, na mfaso wɔ so ma aba a ɛba no tu mpɔn. Bere koro no ara mu no, ɔkwan a wɔfa so yɛ nneɛma a wɔde yɛ nneɛma no yɛ mmerɛw na ɛnyɛ den sɛ wobedi so, na ɛma nnwumakuw dodow bi refa ɔkwan a wɔfa so tew carbothermal so no so.
Nsu mu hyew a wɔde siesie lithium iron phosphate nneɛma
▲Nnyinasosɛm a ɛfa nneɛma a wɔde bom yɛ adwuma ho
▲Nneɛma titiriw a wɔde yɛ nneɛma a wɔde yɛ nneɛma
▲Nneɛma a wɔde yɛ nneɛma a wɔde bom yɛ adwuma
▲Nneɛma a wɔde ayɛ adwuma no adwumayɛ
Ɔkwan a wɔfa so yɛ nsu mu hyew no yɛ ɔkwan a ɛkɔ anim kakra a wɔfa so siesie lithium iron phosphate cathode nneɛma. Ne kwan titiriw no de nsu mu hyew nhyehyɛe a ɛho hia kɛse di dwuma, ɛpete ferrous sulfate, lithium hydroxide, ne phosphoric acid wɔ nsu mu, na ɛma aduru no yɛ hyew bɛboro digrii 100 wɔ baabi a wɔatoto mu ma ɛyɛ nsu a ɛyɛ hyew a ɛkorɔn-nhyɛso kɛse-nhyɛso kɛse. Adeyɛ no kɔ so denam ion a ɛtrɛw so, na ɛma lithium dade phosphate ahwehwɛ nketenkete ba. Afei wɔyi lithium dadeɛ phosphate a ɛho tew no, wɔma ɛyow, na wɔde carbon-kata so ma ɛyɛ lithium dadeɛ phosphate/carbon afrafra.
Akwan a wɔtaa fa so yɛ sɔhwɛ ne nhwehwɛmu akwan a wɔfa so yɛ lithium iron phosphate nneɛma
▲Nnuru a ɛwɔ mu nhwehwɛmu ne akwan a wɔfa so sɔ lithium dade phosphate nneɛma hwɛ
▲Akwan a wɔfa so sɔ honam fam nneɛma hwɛ ma lithium iron phosphate nneɛma
▲Electrochemical adwumayɛ sɔhwɛ akwan ma lithium dade phosphate nneɛma
▲Nhwehwɛmu a ɛfa sɛnea wɔde Lithium Iron Phosphate Nneɛma di dwuma yiye ho
Wɔ lithium iron phosphate (LFP) nneɛma ho no, sɔhwɛ yɛ mfiridwuma titiriw, a ɛho hia mpo sen sɛnea wɔhwɛ nneɛma a wɔyɛ no so. Sɛ wɔannya sɔhwɛ ho nsɛm a ɛyɛ pɛpɛɛpɛ na ɛyɛ nokware a, wontumi nnya nhyehyɛe tebea a ɛyɛ den, na ɛno nti, wontumi nyɛ LFP nneɛma a ɛfata a edi ahwehwɛde ahorow a wɔde di dwuma ho dwuma. Nneɛma a wɔde yɛ adwuma no sɔhwɛ a emu yɛ den ho hia wɔ nneɛma a wɔyɛ no nyinaa mu, efi nneɛma a wɔde yɛ nneɛma a wɔtɔ ne ne yɛ so kosi nneɛma a wɔawie no mu nhwehwɛmu so. Enti, ɛsɛ sɛ kuw biara a ɛreyɛ nhwehwɛmu na ɛyɛ LFP no si ne sɔhwɛ nhyehyɛe no a wɔbɛkyekye so dua kɛse. Sɔhwɛ mfiri a ɛyɛ nwonwa a wɔde bedi dwuma, sɔhwɛ akwan a ɛyɛ katee, ne sɔhwɛ adwumayɛfo a wɔatete wɔn yiye-yɛ tebea atitiriw a adwumakuw bi betumi akura ne gyinabea wɔ adwuma no mu.
Nhwehwɛmu a wɔyɛe wɔ su afoforo a ɛwɔ lithium iron phosphate nneɛma mu ho
▲Electrochemical adwumayɛ nhwehwɛmu a wɔyɛ wɔ lithium dade phosphate nneɛma ho
▲Electron microscopic morphology nhwehwɛmu a wɔyɛ wɔ lithium dade phosphate nneɛma ho
▲Ahoɔden a ɛwɔ lithium dade phosphate nneɛma mu
▲Nsusuwii a ɛkyerɛ sɛnea dade tumi nwura wɔ lithium dade phosphate nneɛma mu
▲Spectroscopic su ahorow a ɛwɔ lithium dade phosphate nneɛma mu
Wɔ lithium iron phosphate nneɛma a wɔde di dwuma yiye mu no, wɔ adwumayɛ ho sɔhwɛ ahorow a wɔyɛ no daa akyi no, ɛho hia nso sɛ wɔsusuw nneɛma pɔtee bi de ma nhwɛsode ma nneɛma no adwumayɛ ho nhwehwɛmu ne batere a wɔyɛ. Esiane sɛ mfiridwuma anya nkɔso nti, mprempren wobetumi de akwan a ɛnyɛ den ahu nneɛma bi a kan no na wobetumi de nkwammoaa a ɛyɛ pɛ nkutoo asusuw. Sɛ nhwɛso no, mprempren wobetumi de sika nkwammoaa a wɔayɛ no titiriw asusuw sɛnea lithium iron phosphate nneɛma no kyinhyia no yɛ adwuma, titiriw sɛnea carbon kyinhyia no yɛ adwuma no ho, na ɛma susuw nhyehyɛe no yɛ mmerɛw kɛse.
Mfiridwuma a wɔde yɛ batere a wɔde lithium iron phosphate nneɛma di dwuma
▲Lithium dade phosphate batere nhyehyɛe nhyehyɛe ho nkyerɛkyerɛmu
▲Lithium dade phosphate ade slurry ahosiesie mfiridwuma
▲Wɔde lithium dade phosphate aduru a wɔde kata so
▲Lithium dade phosphate electrode ahorow a wɔbobɔw
▲Nsakrae ne Nkyekyɛmu
▲Nhwɛso afoforo a ɛfa batere a wɔyɛ ho
Wɔ lithium-ion battery biara ho no, mfitiaseɛ nhyehyɛɛ no ne adwuma titire. Nsusuwii adwuma no hwehwɛ sɛ wɔkyerɛ ɔkwan a wɔfa so yɛ lithium-ion battery no. Esiane sɛ electrode ahorow no na ɛkyerɛ sɛnea batere no yɛ adwuma titiriw nti, electrode nhyehyɛe yɛ ade titiriw a wɔde yɛ batere no. Eyi te saa wɔ lithium iron phosphate batere nso ho.
Mmeae atitiriw a wɔde lithium dade phosphate batere di dwuma
▲Lithium iron phosphate batere a wɔde di dwuma wɔ anyinam ahoɔden mfiri a wɔde fa nneɛma mu
▲Lithium iron phosphate batere a wɔde di dwuma wɔ ahoɔden a wɔkora so ahoɔden a wɔde ma mu
▲Lithium iron phosphate batere a wɔde di dwuma wɔ anyinam ahoɔden nnwinnade mu
▲Nneɛma a wɔde lithium iron phosphate batere di dwuma
Lithium iron phosphate (LFP) yɛ cathode ade a wɔde yɛ lithium-ion batere, na mfaso kɛse a ɛwɔ so ne ahobammɔ a ɛkorɔn. Ɛsan nso wɔ mfasoɔ a lithium manganese oxide ne nickel-manganese-cobalt ternary materials nni, te sɛ kyinhyia nkwa tenten, nneɛma ho ka a ɛba fam, ne nneɛma a wɔde yɛ adwuma pii. LFP batere wɔ ahoɔden a ɛyɛ den, ahoɔden a ɛyɛ adwuma a ɛkɔ fam, ɛne electrolyte nhyehyɛe hyia yiye, ɛnyɛ awuduru, enni nkaeɛ nkɛntɛnso biara, na ɛnsɛe nneɛma a atwa yɛn ho ahyia. Wɔn ahoɔden pɔtee no tumi du 100–130 Wh/kg, a ɛyɛ lead-acid batere mmɔho 0.3–5 ne nickel-metal hydride batere mmɔho 1.5. Esiane mfaso pii a ɛwɔ so nti, wobu no sɛ ɛyɛ batere a eye ma kar a anyinam ahoɔden wom, mframa ne owia ahoɔden a wɔde sie, ne batere a ahobammɔ wom a wɔde bedi dwuma wɔ fie.
Nhwehwɛmu a ɛfa Cathode Nneɛma Afoforo a Wɔde Yɛ Lithium-ion Batere ho
▲Lithium vanadium phosphate cathode nneɛma a wɔde yɛ nneɛma - .
▲Lithium manganese phosphate cathode nneɛma a wɔde yɛ nneɛma
▲Lithium dade silicate cathode ade a wɔde yɛ nneɛma
▲Lithium dade borate cathode ade a wɔde yɛ nneɛma
▲Lithium-aduru a ɛyɛ layered cathode nneɛma
Lithium iron phosphate (LFP) nneɛma a ɛbae no too nneɛma ho nyansahu fapem maa lithium-ion batere akɛse a wɔde dii dwuma kɛse.
Sɛnea wonim no yiye no, ahobammɔ a ɛwɔ lithium-ion batere mu no ayɛ asɛm titiriw ne nea ɛho hia bere nyinaa a ɛto nnwuma no nkɔso ano hye. Wɔ aman a wɔanya nkɔsoɔ a wɔwɔ nneɛma a ɛyɛ den ne nnwinnadeɛ a ɛyɛ nwonwa a wɔde yɛ adwuma mpo mu no, wɔrentumi nhyɛ lithium-ion batere ahobanbɔ ho bɔ koraa. Sɛ yɛhwɛ mprempren lithium-ion batere dwumadie a ɛba fam koraa wɔ me man mu a, LFP fata yie-ma me man no ɔman tebea, na ɛma batere ahobanbɔ tu mpɔn kɛseɛ.