Dɛn ne lifepo4?- Polinovel .

LifePo4 yɛ batere a wɔde lithium dade phosphate di dwuma bio a wotumi de di dwuma bio. Saa chemistry yi de ahobammɔ soronko ma, cycle life a ɛboro charges 3,000, ne thermal stability a atetesɛm lithium-ion battery ntumi ne no nhyia.

Lifepo4 batere nhyehyɛe titiriw no yɛ nneɛma atitiriw abiɛsa a ɛyɛ adwuma wɔ electrochemical harmony mu. Cathode no de lithium iron phosphate (lifepo4) di dwuma, anode no de graphitic carbon di dwuma, na lithium ions a ɛwɔ saa electrode ahorow yi ntam no fa afiri a wɔde yiyi nneɛma mu.

Nea ɛma saa nnuruyɛ yi yɛ anigye titiriw ne dade phosphate aduru no ankasa. Covalent bonding a ɛyɛ den a ɛwɔ (po4)3⁻ polyanion no mu no brɛ covalent bonding no ase kɔ iron ions so, na ɛma redox ahoɔden no so tew na ama wɔanya nominal voltage a ɛyɛ 3.2V wɔ cell biara mu. Eyi yɛ soronko wɔ lithium cobalt oxide nkwammoaa a ɛwɔ 3.7V anaa lithium nickel manganese cobalt oxide nhyehyɛe ahorow ho.

Bere a wɔrebɔ aduru no, lithium ions tu fi iron phosphate cathode no mu fa electrolyte no mu kɔhyɛ graphite anode a ɛwɔ ntoatoaso no mu. Sɛ wode adesoa bi gu battery no so denam adesoa bi a wode bɛka ho so a, saa ions yi dannan kwan no, na ɛsan kɔ cathode no mu bere a ɛlɛtrɔnik no sen fa abɔnten circuit no mu de ahoɔden ma. Saa adwinnade yi fɛ no gyina ne nhyehyɛe a ɛyɛ den so-Le Lifepo4 no olivine ahwehwɛ nhyehyɛe no nya nsakrae ketewaa bi wɔ nne kɛse mu wɔ saa ion no kankyee yi mu, na ɛboa ma kyinhyia no kyɛ a ɛyɛ nwonwa.

Nsonsonoe a ɛda lifepo4 ne lithium a wɔtaa de di dwuma-ion battery ntam no kɔ akyiri sen chemistry labels. Standard lithium-ion batere taa de cobalt oxide (LICOO2), manganese oxide (limn2o4), anaasɛ nickel-aduru a wɔde afrafra di dwuma sɛ cathode nneɛma. Eyinom de ahoɔden density a ɛkorɔn-a ɛkyerɛ tumi pii a ɛwɔ kilogram biara mu-nanso ɛho ka.

LifePo4 di gua bɛyɛ 14% ahoɔden density ma ahobammɔ su pa kɛse. Dadeɛ phosphate nhyehyɛɛ no kɔ so yɛ den wɔ ɔhyew mu baabi a cobalt-gyina nkwammoaa hyɛn thermal runaway. Bere a ebia smartphone batere bɛpae sɛ wɔto mu anaasɛ wɔbɔ no ka boro so a, LifePo4 nkwammoaa no kura wɔn mudi mu. Wɔn titiriw no, wontumi nhyew wɔ huammɔdi tebea horow a ɛfata mu.

Chemistry no nso yi cobalt ne nickel-nneɛma a ɛma nneɛma a atwa yɛn ho ahyia ho haw ne nneɛma a wɔde ma ho nsɛnnennen sɔre no fi hɔ. Dade ne phosphate dɔɔso wɔ Asase no abon mu, na ɛma lifepo4 bo yɛ mmerɛw kɛse sɛ wɔbɛyɛ. 2020 Department of Energy Analysis bi hunuu sɛ LifePo4 batere no boɔ bɛyɛ 6% a ɛsua kilowatt-dɔnhwerew biara sene NMC akwan foforɔ, a nsonsonoeɛ no trɛw berɛ a adwinnan no mu yɛ duru.

Wiase nyinaa LifePo4 batere gua no duu dɔla ɔpepepem 17.2 wɔ afe 2024 mu na wɔhwɛ kwan sɛ ɛbɛkɔ soro wɔ afe afe sika a wɔde afrafra 15.7% kosi afe 2034 mu, na ɛkɔɔ dɔla ɔpepepem 73.68. Eyi nyɛ nsusuwii mu nkɔso-ɛda nsakrae atitiriw adi wɔ sɛnea nnwuma ahorow susuw ahoɔden a wɔkora so ho.

Tesla sesaa ne utility-scale batteries kɔɔ LifePo4 wɔ 2021. Mprempren adwumakuw no de LFP chemistry di dwuma wɔ gyinapɛn nyinaa mu-Range Model 3 ne Model Y kar ahorow a wɔyɛe wɔ October 2021 akyi. Byd, wiase no mu de a ɛto so abien-Largest Electric kar yɛfo, de ne ho ama wɔ nnuru a wɔde yɛ nnuru no ho. Sɛ wɔka bom a, saa nnwumakuo mmienu yi de LFP batere nyinaa mu 68% guu EV gua so de bɛsi September 2022, berɛ a LFP kyeree anyinam ahoɔden kar batere nyinaa mu 31%.

Mprempren Chinafo a wɔyɛ nneɛma no di nneɛma a wɔyɛ so, na wodi bɛyɛ 90% wɔ wiase nyinaa LFP adwumayɛbea ahorow no mu. Saa adwene a wɔde sii so yi fã bi fi tumi krataa ho banbɔ a edi kan a ɛmaa Atɔe Famfo nkɔso ano brɛɛ ase, ɛwom sɛ tumi krataa atitiriw fii ase baa awiei wɔ 2022. Ford de nhyehyɛe ahorow a wɔayɛ ho amanneɛbɔ mae wɔ February 2023 mu sɛ wɔde dɔla ɔpepepem 3.5 bɛto Michigan adwumayɛbea bi a wɔyɛ LFP batere a wɔde bɛyɛ ne anyinam ahoɔden kar ahorow a wɔahyehyɛ{5}}nsɛnkyerɛnne a Atɔe Famfo a wɔyɛ nneɛma no hu sɛ wɔn a wɔyɛ nnuru no bo a wɔde di dwuma no.

Stationary energy storage sector no kyerɛ sɛ wɔagye atom kɛse saa ara. Nnwumakuw te sɛ enphase akwampaefo a wɔte hɔ LFP nhyehyɛe ahorow na ɛboroo Tesla ne LG so sɛ nea ɛsen biara-afa ofie ahoɔden a wɔkora so ahyɛnsode wɔ United States wɔ 2021. Nnuru a wɔde ka bom a ɛka bom yɛ ahobammɔ, nkwa tenten, ne ɛka a wɔbɔ-ɛne nneɛma a wɔde di dwuma no ne nneɛma a wɔde di dwuma no hyia pɛpɛɛpɛ wɔ baabi a ebia batere ahorow no bɛyɛ adwuma kakraa bi a wɔhwɛ so yiye no.

LiFePO4

LifePo4 batere a ɛyɛ papa no de charge kyinhyia 3,000 kosi 5,000 ma bere a ɛkura ne mfitiase tumi no 80% mu. Nkwammoaa a ɛyɛ fɛ te sɛ nea ɛwɔ EcoFlow Delta Pro mu no nya kyinhyia 6,500 ansa na akɔ fam akodu 50% tumi. Fa eyi toto atetesɛm mu lithium-ion batere a ɛboa 500 kosi 1,000 kyinhyia, anaa kɔbere-acid battery a ɛhwɛ 300 kosi 500 cycles pɛ so.

Eyi kyerɛ adwumayɛ mu nsonsonoe a wotumi hu. Owia ahoɔden a wɔkora so nhyehyɛe a wɔde LifePo4 batere di dwuma no betumi ayɛ adwuma yiye mfe 10 kosi 15 bere a wɔde sakre tu kwan da biara da no. Application koro no ara a ɛwɔ standard lithium-ion no betumi ahwehwɛ sɛ wɔsesa wɔ mfe 3 kosi 5 akyi, na lead-acid nhyehyɛe ahorow taa hia ɔsom wɔ mfe 2 ntam.

Battery ahorow no kura discharge voltage a ɛkɔ so daa wɔ wɔn cycle no nyinaa mu. Nea ɛnte sɛ lead-acid battery a ɛnya ahoɔden a ɛkɔ fam kɛse bere a ɛresɛe no, LifePo4 nkwammoaa no kura steady bɛn wɔn din mu voltage kosi sɛ ɛbɛyɛ bɛyɛ 90% discharge. Saa su yi hwɛ hu sɛ mfiri a ɛka bom no nya ahoɔden a ɛyɛ den a enni ahoɔden a wɔde yɛ adwuma ho nsɛnnennen.

Ɔhyew a wotumi gyina ano no trɛw fi -4℃F ({14}}20℃) kosi 140℃F (60℃) ma ɛyɛ adwuma, ɛwom sɛ optimal charging ba wɔ 32℃F (0℃) ne 113℃F (45 degree) ntam. Standard lithium-ion batere taa hwehwɛ 32℃F kosi 113℃F ma adwumayɛ a ahobammɔ wom. Saa kwan a wɔatrɛw mu yi ma LifePo4 yɛ nea ɛfata sɛ wɔde di dwuma wɔ wim tebea a ɛyɛ hu a ɛwɔ owia mu wɔ anhweatam so mmeae anaasɛ tumi nhyehyɛe a ɛwɔ akyi wɔ tebea horow a ɛwɔ arctic mu.

phosphate-based cathode structure no ma ɔhyew ne nnuru a ɛyɛ den a ɛwɔ hɔ a ɛsakra battery ahobammɔ ahoɔden titiriw. Sɛ lithium cobalt oxide batere yɛ hyew dodo a, oxygen fi cathode nhyehyɛe no mu ba, na ɛma ɔhyew a ɛwɔ ankasa-a ɛma ɔhyew a ɛba no kɔ so tra hɔ. P-O nkitahodi a ɛyɛ den a ɛwɔ lithium iron phosphate mu no gyina saa porɔw yi ano wɔ ɔhyew a ɛkɔ soro mpo mu.

Sɔhwɛ kyerɛ sɛ saa ahoɔden yi gyina. LifePo4 nkwammoaa a ɛwɔ ahoɔden koraa a wɔbɛtow anaasɛ wɔbɛbubu no taa de emu tiawa-Circuiting ne Heat Generation ba nanso ɛnyɛ ogya anaasɛ ɛpae. Sɔhwɛ koro no ara a wɔde yɛ lithium cobalt oxide cell no taa ma ɔhyew a ano yɛ den ba. Saa ahobanbɔ ho kwan yi ma LifePo4 batere no tumi yɛ adwuma wɔ mmeae a wɔato mu te sɛ RV dan mu, ahyɛmma mu adan, anaa adan a wɔde kar sisi mu a mframa ho ahwehwɛde kɛse biara nni mu-ɛwom sɛ mframa a ɛsen fa mu no da so ara yɛ papa ma batere nhyehyɛe biara.

Chemistry no ma kwan ma wɔde sika a ɛboro so di dwuma yiye sen nea wobetumi de asi ananmu. Bere a ɛboro 3.6V wɔ nkwammoaa biara mu bere a wɔrebɔ aduru no betumi ama asɛe nkakrankakra no, ɛnkanyan tebea horow a ɛyɛ hu ntɛm ara. Enti battery management systems betumi de ahobammɔ circuits a ɛnyɛ den adi dwuma sɛ wɔde toto cobalt-gyina battery a ɛhwehwɛ sɛ wɔhwɛ charge so pɛpɛɛpɛ no ho a.

undercharging de asɛnnennen foforo ba. LifePo4 nkwammoaa a ɛwɔ fam sen 2.5V no betumi ama deintercalation a wontumi nsakra no aba, ɛdan lifepo4 ma ayɛ FEPO4 na asɛe nkwammoaa no koraa. Nnɛyi BMS nhyehyɛe ahorow no siw eyi ano denam adesoa a ɛtwetwe ansa na adu voltage thresholds a ɛho hia so, nanso ɛda so ara ho hia sɛ wɔde charger ne management nhyehyɛe a wɔayɛ no pɔtee ama lifepo4 chemistry no bedi dwuma sen sɛ wɔde generic lithium-ion mfiri bedi dwuma.

Electric kar ahorow no gyina hɔ ma LifePo4 a wotumi hu sen biara. Chevrolet Spark EV no bɛyɛɛ kar a edi kan a wɔde LFP batere dii dwuma wɔ afe 2014 mu, a A123 nhyehyɛe ahorow no de pack ahorow no mae. Ɛnnɛ, wɔn a wɔyɛ nneɛma pii no gye mfiridwuma a wɔde hyɛ mu-level ne mid-afiri a ɛwɔ anyinam ahoɔden mu a ahoɔden a ɛwɔ fam no yɛ nea wogye tom esiane ahobammɔ ne ɛka a wɔbɔ so no tom nti.

Golf teaseɛnam ne kar a wɔde di dwuma wɔ utility mu no de LifePo4 batere di dwuma kɛse sɛ kɔbere tẽẽ-acid a wɔde besi ananmu. A typical .72 volt lithium ion batere .System for a golf teaseɛnam mu duru bɛyɛ biako-afã anan a ɛyɛ pɛ a ɛyɛ kɔbere-acid battery bank bere a ɛde range a ɛkɔ akyiri ne ntɛmntɛm ma. 72V nhyehyɛe no taa yɛ lifepo4 nkwammoaa 20 kosi 23 a ɛka bom wɔ ntoatoaso mu, na ɛma ahoɔden a ɛho hia ma anyinam ahoɔden mfiri a ɛwɔ golf teaseɛnam, skuter, moto, ne mfiridwuma mu nneɛma a ɛyɛ hare mu.

Owia ahoɔden a wɔkora so nhyehyɛe ahorow de LifePo4 no nkwa nna tenten ne ɔhyew a ɛkɔ so yɛ adwuma no di dwuma. Batere no de owia awo ntoatoaso a ɛboro so no sie yiye wɔ bere a wɔde yɛ nneɛma pii no mu ma wɔde di dwuma bere a owia akɔtɔ anaasɛ bere a anyinam ahoɔden a wɔde yɛ nneɛma no retwa mu no. Wɔn abodwokyɛre ma partial state-of-charge operation-ɛnte sɛ kɔbere-acid battery a ɛsɛe bere a ɛnyɛ charged a edi mũ-ɛma wɔyɛ papa ma da biara da sakre so wɔ ahoɔden a wɔyɛ no foforo a wɔde di dwuma.

Po so ne RV dwumadie nya mfasoɔ firi LifePo4 a ɛka bom yɛ hann, ahobanbɔ, ne nkwa tenten a ɛka bom no mu. A 72V 180AH battery pack betumi ama anyinam ahoɔden trolling motors, ofie ɛlɛtrɔnik mfiri, ne mfiri bere a wogyina wosow, ɔhyew nsakrae, ne bere ne bere mu rough handling saa mmeae yi. Sɛ wɔde toto kɔbere-acid nhyehyɛe ahorow ho a, ɛma ntini no yɛ adwuma yiye na ɛma pɛtro no yɛ adwuma yiye.

Mfiridwuma ne aguadi nnwuma de LifePo4 di dwuma wɔ forklifts, kar a wɔakyerɛ kwan a wɔde yɛ adwuma wɔ ɔkwan a ɛnyɛ adwuma so, ne tumi nhyehyɛe a wɔde siesie nneɛma mu. Batteries no discharge rates a ɛkorɔn no boa tumi-afiri a ɛyɛ hu bere a wɔn ntɛm charge tumi no ma downtime so tew. Telecommunications nnwumakuw de LFP battery di dwuma ma cell tower backup power, de sika gu 10+ afe no mu adwumayɛ mu de tew ɛka a wɔbɔ wɔ nsiesie ho wɔ mmeae a ɛwɔ akyirikyiri no so.

LiFePO4

LifePo4 batere hwehwɛ charger a wɔayɛ no pɔtee ama wɔn voltage profile. Charging nhyehyɛe no di abien-afã kwan: constant current a edi akyi daa voltage. Wɔ daa mprempren fã no mu no, charger no de amperage a ɛyɛ pintinn-a mpɛn pii no ɛyɛ 0.5C kosi 1C, a ɛkyerɛ sɛ fã a ɛne battery no amp-dɔnhwerew rating-kosi sɛ nkwammoaa bedu bɛyɛ 3.6V biara. Sɛ wopɛ 72V nhyehyɛe a, eyi kyerɛ sɛ wobɛbɔ ka kosi sɛ pack voltage no bedu bɛyɛ 83-85V.

Sɛ absorption voltage no du bɛyɛ 90% state of charge a, charger no dan kɔ constant voltage mode so. Mprempren no so tew nkakrankakra bere a nkwammoaa no hyɛ mu ma, a charging no di mũ bere a current no so tew kɔ 5-10% wɔ battery no tumi dodow mu. Eyi yɛ soronko wɔ lead-acid charge protocols a ɛde equalization charges anaa float voltages-techniques a ebetumi asɛe LifePo4 cells di dwuma no ho.

Sɛ wode lithium-ion charger a wɔahyɛ da ayɛ a wɔayɛ ama 4.2V nkwammoaa a ɛwɔ LifePo4 batere so no di dwuma a, ɛma ahoɔden boro so, efisɛ ahoɔden a wɔde yɛ adwuma no boro ahobammɔ a ɛwɔ hɔ ma dade phosphate nnuru no so. Nea ɛne no bɔ abira no, sɛ wode lead-acid charger ahorow di dwuma a, mpɛn pii no wobɔ LifePo4 batere ho ka na ebia ɛrentumi nhyɛ charge termination ase yiye.

Ɔhyew a wɔhwɛ so bere a wɔrebɔ ka no ho hia. Sɛ wobɔ no nwini ase a, ebetumi ama lithium apete anode no so, na ɛtew tumi a ɛwɔ so no so koraa. Battery sohwɛ nhyehyɛe a ɛyɛ papa pii ka ɔhyew nneɛma a ɛma pack no yɛ hyew ma ɛyɛ nea ahobammɔ wom ansa na ama mprempren nsu no asen. Saa ara nso na sɛ wɔde anyinam ahoɔden a ɛboro 113 digrii F sɛe a, ɛma ɛyɛ hyew.

Mfitiaseɛ adetɔ boɔ gyinabea LifePo4 batere wɔ premium sɛ wɔde toto lead-acid alternatives ho a. 72V 100AH LifePo4 pack no betumi agye $2,000-3,000, bere a lead-acid battery a ɛne no sɛ no yɛ $600-1,000. Saa bo a ɛwɔ mu yi siw adetɔfo binom a wɔhwɛ ka a wɔbɔ ansa na wɔayɛ no nkutoo kwan.

Akontaabu no sesa kɛse bere a wɔresusuw ɛka biara ho wɔ kyinhyia biara mu no. Wɔ 3,000 cycles a ɛsua koraa no, LifePo4 pack no de ahoɔden ma $0.67-1.00 wɔ cycle biara mu. Lead-Acid battery a ɛhwɛ kyinhyia 400 so no bo yɛ $1.50-2.50 wɔ kyinhyia biara mu. Wɔ batere no adwumayɛ mu no, LifePo4 nhyehyɛe ahorow no taa bo yɛ den 30-50% sen batere a wɔde kɔbere ayɛ no foforo mpɛn pii.

Nneɛma foforo a ɛwɔ hɔ no ma mfaso yi yɛ kɛse. LifePo4 batere tumi gyae kɔ 100% bun a biribiara nsɛe, bere a ɛsɛ sɛ kɔbere-acid battery no fi adi kɔ 50% bun mu nkutoo na ama cycle nkwa akɔ so atra hɔ. Wei kyerɛ sɛ 100AH LifePo4 battery ma tumi a ɛyɛ pɛ a wɔde di dwuma ma 200ah kɔbere-acid battery, kɔ so ma ɛka ntotoho no tu mpɔn.

Nsiesiei ho ka yera titiriw wɔ LifePo4 ho. Lead-acid battery hwehwɛ sɛ wɔde nsu ka ho bere ne bere mu, terminal cleaning, ne equalization charging. LifePo4 nhyehyɛe ahorow no yɛ adwuma wɔ nsiesie mu-a wontua hwee a ɛboro mfitiase nkitahodi nhwehwɛmu so. Battery no nso self-discharge wɔ bɛyɛ 2-3% ɔsram biara sɛ wɔde toto 5-10% ma lead-acid, a ɛkyerɛ sɛ battery a wɔde asie no kura charge a wonni daa nsiesie charge.

Mu duru a wɔtew so no de sika a wɔkora so tẽẽ ma wɔ mobile application ahorow mu. Sɛ wode lifepo4 nkaribo 100 si kɔbere nkaribo 400 ananmu a, ɛma kar no yɛ adwuma yiye, ɛma kar no yɛ adwuma yiye, ɛma nneɛma a ɛwɔ hɔ no so tew, na ɛtew nneɛma a wɔde gyina so no so. Wɔ po so dwumadie ho no, mu duru a wɔkora so no ma anwenneɛ adwumayɛ ne pɛtro a wɔde di dwuma no tu mpɔn.

Cobalt, nikel, ne awuduru dade a emu yɛ duru a enni hɔ no de LifePo4 si hɔ sɛ batere a ɛde nneɛma a atwa yɛn ho ahyia ho asɛyɛde kɛse ba. Dade ne phosphate de abɔde a nkwa wom ho asiane ketewaa bi ba bere a wɔreyi, wɔreyɛ ho adwuma, na awiei koraa no wɔasan de adi dwuma bio no. Mframa anaa acid biara nni batere no mu a ebetumi akɔ bere a ɛreyɛ adwuma anaasɛ wɔreto agu no.

Nneɛma a wɔde di dwuma bio ma LifePo4 batere no nyɛ den pii te sɛ cobalt-gyina so. Wobetumi anya dade phosphate no na wɔasan de adi dwuma bio wɔ batere foforo, dade a wɔyɛ, anaa phosphate a wɔde yɛ aduan mu. Bere a recycling infrastructure kɔ so nya nkɔso no, nneɛma a ɛwɔ hɔ a ɛyɛ nneɛma a ɛwɔ hɔ ne ahwehwɛde ahorow a ɛyɛ mmerɛw a wɔde di dwuma no ma LFP a wɔsan de di dwuma no yɛ nea sikasɛm mu mfaso wɔ so.

Nkwa nna a wɔatrɛw mu no ma nneɛma a wɔyɛ no ho ahwehwɛde ne nneɛma a atwa yɛn ho ahyia a ɛka ho no so tew. LifePo4 batere biako a ɛyɛ adwuma ma mfe 10- mfe 15 no si 3- 5 a wɔde kɔbere ayɛ a wɔde besi ananmu anaasɛ 2-3 standard lithium-ion a wɔde besi ananmu. Saa nneɛma a wɔyɛ no kyinhyia a ɛso tew yi ma nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma no so tew, ahoɔden a wɔde di dwuma, ne mframa a wɔde fa nneɛma mu wɔ nneɛma a wɔyɛ no nkwa nna nyinaa mu no so tew.

End-a ɛwɔ{1}}Life LifePo4 batere mu no taa kura 70-80% wɔ mfitiaseɛ tumi mu, na ɛma ɛfata ma nkwa a ɛtɔ so mmienu dwumadie. Kar batere a wɔde asi ananmu esiane range reduction nti no betumi ayɛ adwuma yiye wɔ stationary energy storage a ahoɔden a ɛyɛ den no ho hia sen ɛka ne ahotoso. Saa cascading a wɔde di dwuma yi ma nneɛma a atwa yɛn ho ahyia no nyinaa nya battery biara a wɔyɛ no so mfaso.

Standard cell configurations di nnwumayɛ nhyehyɛe ahorow akyi. Nkwammoaa baako de 3.2V nominal voltage a ɛwɔ tumi a ɛfiri 3ah units nketewa ma ɛlɛtrɔnik mfiri a wɔtumi fa so kɔsi 300ah nkwammoaa akɛseɛ so ma ahoɔden a wɔkora so nhyehyɛeɛ. Common series configurations no bi ne:

12V nhyehyɛe: nkwammoaa 4 wɔ ntoatoaso (12.8V din mu) .

24V nhyehyɛe: nkwammoaa 8 a ɛwɔ ntoatoaso (25.6V din mu) .

48V nhyehyɛe: nkwammoaa 15 wɔ ntoatoaso (48V din mu) .

72V nhyehyɛe: 20-23 nkwammoaa wɔ ntoatoaso (64V-73.6V din mu) .

72 volt lithium ion battery a wɔde lifepo4 chemistry ayɛ no taa de nkwammoaa 23 di dwuma wɔ 3.2V biara mu, na ɛma ahoɔden a ɛyɛ 73.6V ba. Eyi boro 72V din no so kakra nanso ɛda so ara wɔ voltage range a ɛyɛ 72V-wɔde motor controllers ne inverters ahyɛ mu no mu. Nsiesiei no fata anyinam ahoɔden moto, E-sakre akɛse, golf teaseɛnam, ne kar nketewa a anyinam ahoɔden wom a ɛhwehwɛ sɛ wɔde anyinam ahoɔden kɛse ma.

Ɛsono sɛnea nsu a efi mu ba no te wɔ nkwammoaa no ho nhyehyɛe ne ne yɛ mu. LifePo4 nkwammoaa dodow no ara boa 1C continuous discharge, a ɛkyerɛ sɛ wobetumi de current a ɛne wɔn tumi rating-100ah battery betumi akɔ so ama 100 amps. High-Adwumayɛ nkwammoaa a wɔayɛ ama tumi nnwinnade anaa anyinam ahoɔden kar ahorow boa 3C kosi 20C nsu a ɛkɔ mu, ɛwom sɛ saa tumi yi ba wɔ ɛka a ɛkɔ soro de.

Ahoɔden a ɛyɛ den no taa fi 90-120 wh/kg ma lifepo4 sɛ wɔde toto 150-220 wh/kg ma NMC lithium-ion batere ho a. Saa density a ɛba fam yi hwehwɛ sɛ wɔde honam fam volume anaa mass kɛse na ɛma ahoɔden a ɛne no sɛ. Wɔ dwumadie a emu duru ne ahunmu ho hia-aerospace mu no, anyinam ahoɔden kar-NMC nnuruyɛ taa di nkonim. Baabi a ahobammɔ, nkwa tenten, ne ɛka ho hia kɛse no, LifePo4 di so.

LiFePO4

LifePo4 batere taa de charge cycle 3,000 kosi 5,000 ma bere a ɛkora 80% tumi so, na ɛkyerɛ ase kɔ 10- mfe 15 wɔ da biara mu-de application ahorow di dwuma. Nkwammoaa a ɛyɛ fɛ no betumi aboro kyinhyia 6,500. Kalenda nkwa trɛw kɔ 10+ mfe mu mpo a wɔmfa nni dwuma kɛse, efisɛ chemistry no nya ne ho a ɛba brɛoo na ɛbrɛ ase kakraa bi bere a wɔde sie wɔ charge fã bi mu no.

Dabi, standard lithium-ion charger ahorow no de wɔn ani si 4.2V so wɔ nkwammoaa biara mu bere a LifePo4 nkwammoaa no hia 3.6V maximum charge voltage. Sɛ wode charger a ɛnteɛ di dwuma a, ɛma wobɔ ka kɛse, ɛma ɔhyew ba na ɛtew tumi so koraa. Bere nyinaa fa charger ahorow a wɔayɛ no pɔtee ama LifePo4 chemistry anaasɛ charger a wotumi hyehyɛ a wɔde ahyɛ voltage profile a ɛfata mu di dwuma.

Dadeɛ phosphate nnuru nhyehyɛeɛ no gyina ɔhyeɛ a ɛporɔw ne oxygen a ɛfiri mu ba a ɛma ɔhyeɛ no guan wɔ cobalt-gyina batere so. P{2}}O nkitahodi a ɛyɛ den no kɔ so yɛ nea ɛyɛ den wɔ ɔhyew a ɛkɔ soro mu, na esiw ankasa-a ɛma ɔhyew a ɛma lithium batere afoforo yɛ hu bere a asɛe anaasɛ ayɛ hyew dodo no ano. LifePo4 nkwammoaa no titiriw yɛ nea wontumi nhyew wɔ huammɔdi tebea a ɛfata mu.

Lifepo4 batere yɛ adwuma wɔ ɔhyew mu fi -4℃F kosi 140℃F, ɛwom sɛ adwumayɛ so tew wɔ ɔhyew a ano yɛ den mu de. Sɛ wobɔ ka a ɛba fam sen 32℃F a, ebetumi asɛe daa denam lithium plating so. Battery sohwɛ nhyehyɛe ahorow a ɛyɛ papa no bi ne ɔhyew nneɛma a wɔde yɛ batere a ɛyɛ hyew ansa na wɔama kwan ma charge current wɔ awɔw tebea mu. Nneɛma a ɛma obi tumi fi ne mu no da so ara yɛ nea wogye tom wɔ wim tebea a ɛyɛ nwini mu, ɛwom sɛ tumi a ɛwɔ hɔ no so tew bere tiaa bi de.

LifePo4 gyina hɔ ma maturation point wɔ rechargeable battery technology{1}}afiri a ɛde ahoɔden density bi bɔ afɔre ma ɛyɛ ahobammɔ a eye kɛse, nkwa tenten, ne ɛka-etu mpɔn. Mfiridwuma no akɔ akyiri asen sɛnea wɔfaa no ntɛm no kɔɔ nnwuma titiriw a wɔde di dwuma wɔ nnwuma ahorow mu a saa su ahorow yi ho hia sen tumi a ɛsen biara wɔ kilogram biara mu.

Guadi kwan no kyerɛ sɛ nsakrae yi bɛkɔ so. Sɛ́ nneɛma a wɔyɛ no nsenia so no, ɛka a wɔbɔ no so tew. Bere a tumi krataa no twam no, nnwumakuw pii hyɛn nneɛma a wɔyɛ mu. Bere a application ahorow da adwumayɛ a wotumi de ho to so adi wɔ mfe anaa mfe du du mu no, ahotoso a wɔwɔ wɔ mfiridwuma mu no mu yɛ den. Wɔ obiara a ɔresusuw ahoɔden a wɔde sie ho no ho-sɛ́ anyinam ahoɔden kar a ɛma ahoɔden, owia ahoɔden a wɔkora so, anaasɛ wɔde di kan no-acid battery wɔ nnwinnade a ɛwɔ hɔ dedaw mu-LifePo4 no fata sɛ wosusuw ho anibere so a egyina ne kyerɛwtohɔ a wɔde asi hɔ ne sikasɛm a ɛhyɛ nkuran so.