Ma elekitirodi abwino amabatire a lithiamu-ionndi lithiamu iron phosphate material, yomwe ili ndi ubwino wambiri pachitetezo komanso moyo wozungulira.Izi ndi chimodzi mwa zizindikiro zofunika kwambiri luso batire mphamvu.Battery ya Lifepo4 yokhala ndi 1C yolipiritsa ndi kutulutsa moyo wozungulira imatha kupezedwa nthawi 2000, kuphulika sikuphulika, sikophweka kuyaka ndikuphulika mukangowonjezera.Zipangizo za lithiamu iron phosphate cathode zimapangitsa kuti mabatire akuluakulu a lithiamu-ion azisavuta kugwiritsa ntchito mndandanda.
Lithium iron phosphate ngati zinthu za cathode
Batire ya Lifepo4 imatanthawuza batri ya lithiamu-ion yomwe imagwiritsa ntchito lithiamu iron phosphate ngati chinthu chabwino cha electrode.Zida zabwino zama electrode zamabatire a lithiamu-ion makamaka zimaphatikizapo lithiamu cobaltate, lithiamu manganate, lithiamu nicklate, ternary materials, lithiamu iron phosphate, ndi zina zotero.Pakati pawo, lithiamu cobaltate ndi zinthu zabwino za electrode zomwe zimagwiritsidwa ntchito m'mabatire ambiri a lithiamu-ion.M'malo mwake, lithiamu iron phosphate ndi njira yophatikizira komanso yosokoneza.Mfundo imeneyi ndi yofanana ndi lithiamu cobaltate ndi lithiamu manganate.
Ubwino wa batri ya lifepo4
1. Kulipiritsa kwakukulu komanso kutulutsa bwino
Batire ya Lifepo4 ndi batri yachiwiri ya lithiamu-ion.Cholinga chimodzi chachikulu ndi mabatire amphamvu.Ili ndi zabwino zambiri kuposa mabatire a NI-MH ndi Ni-Cd.Battery ya Lifepo4 imakhala ndi mphamvu zambiri komanso imatuluka bwino, ndipo mphamvu yamagetsi ndi kutulutsa imatha kufika kupitirira 90% pansi pa chikhalidwe cha kutulutsa, pamene batri la lead-acid lili pafupi 80%.
2. batire ya lifepo4 yotetezeka kwambiri
Chigwirizano cha PO mu lithiamu iron phosphate crystal ndi chokhazikika komanso chovuta kuwonongeka, ndipo sichimagwa kapena kutentha ngati lithiamu cobaltate kapena kupanga chinthu cholimba cha oxidizing ngakhale kutentha kwakukulu kapena kuwonjezereka, motero kumakhala ndi chitetezo chabwino. , gawo laling'ono lachitsanzolo linapezeka kuti lili ndi chinthu choyaka moto mu acupuncture kapena mayeso afupipafupi, koma panalibe chochitika chophulika.Pakuyesa kopitilira muyeso, chiwongola dzanja chokwera kwambiri chomwe chinali chokwera kangapo kuposa mphamvu yodziyimitsa yokha idagwiritsidwa ntchito, ndipo zidapezeka kuti pakadali chinthu cha Explosion.Komabe, chitetezo chake chochulukira chakhala bwino kwambiri poyerekeza ndi batire wamba wamadzimadzi a electrolyte lithium cobalt oxide.
3. Lifepo4 batire yaitali mkombero moyo
Batire ya Lifepo4 imatanthawuza batri ya lithiamu-ion yomwe imagwiritsa ntchito lithiamu iron phosphate ngati chinthu chabwino cha electrode.Batire ya lead-acid ya moyo wautali imakhala ndi moyo wozungulira pafupifupi nthawi 300, ndipo yapamwamba kwambiri ndi nthawi 500.Batire ya lithiamu iron phosphate imakhala ndi moyo wozungulira nthawi zopitilira 2000, ndipo mtengo wanthawi zonse (maola 5) ungagwiritsidwe ntchito mpaka nthawi 2000.Batire yamtundu womwewo wa acid-acid ndi "watsopano wazaka theka, theka lakale, kukonza ndi kukonza kwa theka la chaka", mpaka zaka 1 ~ 1.5, ndipo batire ya lifepo4 imagwiritsidwa ntchito pamikhalidwe yomweyi, moyo wazongopeka udzakhala. kufika zaka 7-8.Poganizira momveka bwino, chiŵerengero cha mtengo wa ntchito ndi choposa kanayi kuposa mabatire a lead-acid.Kutulutsa kwakanthawi kochepa kumatha kulipitsidwa mwachangu ndikutulutsidwa ndi 2C yapamwamba kwambiri.Pansi pa charger yapadera, batire imatha kulipiritsidwa kwathunthu mkati mwa mphindi 1.5 za 1.5C kulipiritsa, ndipo poyambira pano imatha kufika 2C, koma batire ya acid-lead ilibe ntchito yotere.
4. Kuchita bwino kwa kutentha
Kutentha kwapamwamba kwa lithiamu iron phosphate kumatha kufika 350 ° C -500 ° C pamene lithiamu manganate ndi lithiamu cobaltate ndizozungulira 200 ° C. Kutentha kwakukulu kwa ntchito (-20C-+75C), ndi kukana kutentha kwambiri, lithiamu iron phosphate Kutentha kwamphamvu kwamagetsi kumatha kufika 350 °C-500 °C, pomwe lithiamu manganate ndi lithiamu cobalt oxide kokha pa 200 °C.
5. Lifepo4 batire Kuchuluka
Ili ndi mphamvu yokulirapo kuposa mabatire wamba (lead-acid, etc.).Kuchuluka kwa monomer ndi 5AH-1000AH.
6. Palibe kukumbukira kukumbukira
Mabatire omwe amatha kuchangidwanso amagwira ntchito pansi pazikhalidwe zomwe nthawi zambiri sizimatulutsidwa, ndipo mphamvuyo imatsika mwachangu kuposa momwe idavotera.Chodabwitsa ichi chimatchedwa memory effect.Memory ngati nickel-metal hydride ndi nickel-cadmium mabatire, koma batire ya lifepo4 ilibe chodabwitsa ichi, mosasamala kanthu za momwe batire ilili, ingagwiritsidwe ntchito ndi malipiro, osafunikira kutulutsa ndi kubwezeretsanso.7.Wopepuka wa batri ya lifepo4
Batire ya lifepo4 ya mphamvu yofananira ndi 2/3 ya voliyumu ya batire ya acid-lead, ndipo kulemera kwake ndi 1/3 ya batire ya lead-acid.
8. Mabatire a Lifepo4ndi okonda zachilengedwe
Batire nthawi zambiri imawonedwa kuti ndi yopanda zitsulo zolemera komanso zitsulo zosowa (mabatire a Ni-MH amafuna zitsulo zosowa), zopanda poizoni (zovomerezeka za SGS), zosaipitsa, mogwirizana ndi malamulo aku Europe a RoHS, ndi satifiketi yobiriwira yobiriwira. .Chifukwa chake, chifukwa chomwe mabatire a lithiamu amayamikiridwa ndi makampaniwa ndizovuta kwambiri zachilengedwe.Choncho, batire yaphatikizidwa mu ndondomeko ya chitukuko chapamwamba cha dziko la "863" pa nthawi ya "Mapulani a Zaka Zisanu Zaka khumi" ndipo yakhala pulojekiti yothandiza kwambiri komanso yolimbikitsa dziko lonse.Popeza dziko la China lilowa m’bungwe la WTO, kuchuluka kwa njinga zamagetsi ku China kudzachulukirachulukira, ndipo njinga zamagetsi zolowa ku Ulaya ndi ku United States ziyenera kukhala ndi mabatire osaipitsa.Kuchita kwa batri ya lithiamu-ion kumadalira makamaka pazinthu zabwino ndi zoipa.Lithium iron phosphate ndi zinthu za batri za lithiamu zomwe zangowoneka m'zaka zaposachedwa.Chitetezo chake ndi moyo wozungulira sizingafanane ndi zida zina.The zofunika kwambiri luso zizindikiro batire.Battery ya Lifepo4 ili ndi ubwino wopanda poizoni, wosaipitsa, chitetezo chabwino, mitundu yambiri ya zipangizo, mitengo yotsika, ndi moyo wautali.Ndi abwino cathode zakuthupi kwa m'badwo watsopano wamabatire a lithiamu-ion.