Akwahosan tebea (SOH) akontaabu .
Wobetumi ada battery SOH nso adi sɛ ne nkwa nna. Wobetumi akyekyɛ batere nkwa nna mu abien a egyina sɛnea wɔde di dwuma tebea horow so: storage lifespan ne cycle lifespan.
Storage Lifespan gyina hɔ ma onyin mu nneɛma ne nea efi batere mu ba bere a wɔde sie no. Wɔ storage mu no, battery tumi no so tew a wontumi nsakra no, na self-discharge rate no gu ahorow kɛse a egyina storage environment no so. Enti, sɛnea batere no nyin ntɛmntɛm anaasɛ ɛyɛ mmerɛw no gyina baabi a wɔkora nneɛma so no so. Storage temperature yɛ adeɛ titire a ɛka storage lifespan ne self-discharge. Sɛ wɔde toto dan mu hyew ho a, batere a wɔkora so kɛse no ma afã a ɛyɛ adwuma (te sɛ nsɛe) no yɛ nea ɛda adi kɛse, na dade cations a ɛyera no mu yɛ den kɛse; Bere a ɛwɔ ɔhyew a ɛba fam mu no, nneɛma a ɛtrɛw ne electrochemical reactions no so tew, na ɛnam so ma batere no nyin ntɛmntɛm. Ade foforo a ɛka battery storage lifespan ne SOC bo a ɛsom wɔ battery storage bere mu (ha yi, wɔkyerɛ SOC ase sɛ ion ratio wɔ electrodes no so). Wɔ storage temperature koro no ara nanso ɛsono battery storage SOCs no, battery aging kwan no yɛ soronko. Wɔ SOCs a ɛkorɔn mu no, charge a ɛnkari pɛ kɛse bi wɔ electrode/electrolyte ntam, a ɛma electrochemical reactions nya nkɔso.
Cycle life gyina hɔ ma nkɛntɛnso a battery a wɔde di dwuma (gye ne nea wɔde gyae) nya wɔ battery no so. Battery onyin kɔ so bere a wɔde charging ne discharging nyinaa di dwuma no. Ɔhyew ne mprempren bere a wɔde batere di dwuma no nya kyinhyia nkwa so nkɛntɛnso tẽẽ. Bio nso, nneɛma a ɛka batere a wɔkora so no nso nya kyinhyia nkwa so nkɛntɛnso, efisɛ nneyɛe a ɛfa ho no ba ɛmfa ho sɛ wɔde batere no di dwuma anaasɛ wɔde di dwuma wɔ ahomegye mu. Battery a wɔde di dwuma no yɛ exothermic adeyɛ; Ɔhyew a ɛkɔ soro no ma saa nneyɛe yi yɛ ntɛmntɛm, na ɛnam so ma batere no nyin ntɛmntɛm. Saa variables yi akyi no, parameters a ɛfa cycle life ho no yɛ battery no state of charge no dwumadi ahorow. Charge dodow a ɛyera wɔ bere a wɔreyi obi afi mu biako (nsakrae wɔ charge tebea mu) no yɛ ade titiriw a ɛwɔ nkɛntɛnso kɛse wɔ batere a ɛrebɔ akwakoraa ne aberewa so. Saa adeyɛ yi fi electrode a ɛyɛ papa no a ɛsɛe ne SEI film a ɛba bere a ɛrekɔ soro-mprempren charge ne discharging no titiriw.
1. Nkyerɛaseɛ a ɛfa tebea a ɛfa ɔhaw ho (SOH) wɔ batere mu .
Wobetumi anya SOH ho nkyerɛkyerɛmu ahorow afi adwene ahorow mu. Mprempren, nkyerɛase ahorow a wɔtaa de di dwuma wɔ batere nhwehwɛmu mu no bi ne nkyerɛase a ɛwɔ mu a ɛko tia nyarewa, depth of discharge definition, ne charge nkyerɛase a aka no.
(1) Ɔkwan a wɔfa so gyina ano a ɛwɔ mu no nkyerɛase kwan .
Battery no akwahosan tebea sɛe bere a ne mu ahoɔden a ɛko tia no kɔ soro nkakrankakra no. Wobetumi agyina saa abusuabɔ yi so akyerɛkyerɛ batere no akwahosan tebea (SOH) mu:
Wɔ fomula no mu no, rnew gyina hɔ ma batere no mu ahoɔden a ɛko tia bere a wɔreyɛ no; REOL gyina hɔ ma emu ahoɔden a ɛwɔ batere no nkwa nna awiei; na r gyina hɔ ma battery no mu resistance wɔ ne mprempren tebea mu.
Ade titiriw a ɛwɔ saa nkyerɛase yi mu ne sɛ wobenya bo a ɛyɛ pɛpɛɛpɛ ama batere no mu ahoɔden a ɛko tia. Mfaso a ɛwɔ so no yɛ nea efi susudua mu ba a ɛyɛ pɛpɛɛpɛ, nanso nea enye wɔ ho ne sɛ ensusuw sɛnea batere no tumi a wɔde ahyɛ mu no ho, a batere no akwahosan tebea (SOH) nya so nkɛntɛnso kɛse.
(2) Nkyerɛaseɛ a ɛfa depth of discharge ho (SOH) .
Battery bi mu dɔ (SOH) kyerɛ sɛnea batere no tumi gyae no ne n’ankasa tumi no hyia. Saa nsusuwii yi ne mpɛn dodow a wobetumi asan de batere no ahyɛ mu no hyia wɔ ɔkwan a ɛne no nhyia so; Ɛne sɛ, dodow a nsu no mu dɔ no yɛ kɛse no, dodow no ara na mpɛn dodow a wobetumi asan de ahyɛ mu no sua. Enti, wobetumi akyerɛkyerɛ SOH mu afi adwene a ɛfa sɛnea nsu no mu dɔ no ho sɛ: ɔha biara mu nkyem a ɛwɔ dodow a aka no mu kosi dodow a ɛsen biara a wɔde san ba bio wɔ nsu a ɛkɔ akyiri no mu.
(3) Nkyerɛase a ɛfa tumi a aka ho .
Wɔkyerɛkyerɛ tebea a ɛwɔ ahoɔden (SOH) mu no fi battery no tumi a aka no ho adwene mu. Sɛ wɔde di dwuma bere bi akyi a, wobetumi asusuw batere no tumi a aka no tẽẽ. Enti, ma cnew nyɛ battery no tumi a ɛsen biara bere a wɔmfa nni dwuma no, na cnorm nyɛ battery no tumi a ɛsen biara a wobetumi de adi dwuma. Afei, SOH betumi akyerɛ ase sɛ...
