Chiyambi:
Chiyambireni kulowa msika,mabatire a lithiamuakhala akugwiritsidwa ntchito kwambiri pazabwino zawo monga moyo wautali, mphamvu zenizeni zenizeni, komanso osakumbukira. Akagwiritsidwa ntchito pa kutentha kochepa, mabatire a lithiamu-ion amakhala ndi mavuto monga kuchepa kwa mphamvu, kuchepa kwakukulu, kusayenda bwino kwa kayendedwe ka kayendedwe kake, mpweya wa lithiamu wodziwikiratu, komanso kuyika ndi kutulutsa kwa lithiamu kosakwanira. Komabe, pamene ntchito yogwiritsira ntchito ikupitilira kukula, zopinga zomwe zimadza chifukwa cha kuchepa kwa kutentha kwa mabatire a lithiamu-ion zikuwonekera kwambiri. Tiyeni tifufuze zifukwa ndikufotokozera momwe tingachitire moyenera mabatire a lithiamu m'nyengo yozizira?
Zokambirana pazifukwa zomwe zimakhudza kuchepa kwa kutentha kwa mabatire a lithiamu
1. Mphamvu ya Electrolyte
Electrolyte imakhudza kwambiri ntchito yotsika kutentha kwamabatire a lithiamu. Mapangidwe ndi ma physicochemical a electrolyte ali ndi mphamvu yofunikira pakutentha kotsika kwa batire. Vuto lomwe likukumana ndi batire pa kutentha kochepa ndilokuti kukhuthala kwa electrolyte kudzawonjezeka, kuthamanga kwa ion conduction kumachepetsa, zomwe zimapangitsa kuti pakhale kusagwirizana kwa liwiro la kusamuka kwa ma elekitironi kwa dera lakunja, kotero kuti batire idzawonongeka kwambiri ndipo mphamvu yotulutsa ndi kutulutsa idzatsika kwambiri. Makamaka pakulipiritsa kutentha pang'ono, ma ion a lithiamu amatha kupanga ma lithiamu dendrites pamtunda wa electrode yoyipa, zomwe zimapangitsa kuti batire iwonongeke.
2. Mphamvu ya zinthu zoipa electrode
- Battery polarization ndi yaikulu panthawi yotsika kwambiri kutentha ndi kutulutsa, ndipo kuchuluka kwa zitsulo za lithiamu kumayikidwa pamwamba pa electrode yolakwika. The anachita mankhwala zitsulo lifiyamu ndi electrolyte zambiri si conductive;
- Kuchokera pamalingaliro a thermodynamic, electrolyte ili ndi magulu ambiri a polar monga CO ndi CN, omwe amatha kuchitapo kanthu ndi zinthu zoipa za electrode, ndipo filimu ya SEI yopangidwa imakhala yovuta kwambiri kutentha;
- Ndizovuta kuti ma electrode a carbon negative atseke lithiamu pa kutentha kochepa, ndipo pali asymmetry pakulipiritsa ndi kutulutsa.
Momwe mungachitire moyenera mabatire a lithiamu m'nyengo yozizira?
1. Musagwiritse ntchito mabatire a lithiamu m'malo otentha kwambiri
Kutentha kumakhudza kwambiri mabatire a lithiamu. Kutsika kwa kutentha, kumachepetsanso ntchito ya mabatire a lithiamu, zomwe zimabweretsa kuchepa kwakukulu kwa kulipiritsa ndi kutulutsa mphamvu. Nthawi zambiri, ntchito kutentha kwamabatire a lithiamundi pakati pa -20 madigiri ndi 60 madigiri.
Kutentha kukakhala pansi pa 0 ℃, samalani kuti musapereke ndalama panja. Titha kutenga batri m'nyumba kuti tiyipire (zindikirani, onetsetsani kuti musakhale ndi zida zoyaka moto !!!). Kutentha kukakhala pansi -20 ℃, batire imangolowa m'malo osagona ndipo silingagwiritsidwe ntchito moyenera.
Choncho, makamaka kwa ogwiritsa ntchito m'madera ozizira kumpoto, ngati palibe vuto lolipiritsa m'nyumba, gwiritsani ntchito kutentha kotsalira pamene batire yatulutsidwa, ndi kulipiritsa padzuwa mwamsanga mutangoyimitsa kuti muwonjezere kuchuluka kwa ndalama ndikupewa mpweya wa lithiamu.
2. Khalani ndi chizolowezi cholipiritsa mukamagwiritsa ntchito
M'nyengo yozizira, mphamvu ya batri ikakhala yotsika kwambiri, tiyenera kuitchaja nthawi yake ndikukhala ndi chizolowezi chotchaja mukamagwiritsa ntchito. Kumbukirani, musayerekeze mphamvu ya batri m'nyengo yozizira molingana ndi moyo wa batri wabwinobwino.
M'nyengo yozizira, ntchito yamabatire a lithiamuzimachepa, zomwe zingayambitse kutulutsa mochulukira komanso kuchulukitsitsa, zomwe zingakhudze moyo wa batri kapena kuyambitsa ngozi zoyaka. Chifukwa chake, m'nyengo yozizira, muyenera kusamala kwambiri pakulipiritsa pang'ono ndikutulutsa pang'ono. Makamaka, musayimitse galimotoyo kwa nthawi yayitali mukulipiritsa kuti musachulukitse.
3. Osamatalikirana pochajisa. Kumbukirani kuti musamalipitse kwa nthawi yayitali.
Osalipira galimotoyo kwa nthawi yayitali kuti izi zitheke. Ingochotsani plug ikatha. Malo opangira ndalama m'nyengo yozizira sayenera kutsika kuposa 0 ℃. Mukamalipira, musachoke patali kwambiri kuti mupewe ngozi zadzidzidzi ndikuthana nazo munthawi yake.
4. Gwiritsani ntchito chojambulira chodzipatulira cha mabatire a lithiamu mukamalipira.
Msikawu uli ndi ma charger otsika kwambiri. Kugwiritsa ntchito ma charger otsika kumatha kuwononga mabatire komanso kuyatsa moto. Osagula zinthu zotsika mtengo komanso zopanda chitetezo pamtengo wotsika, osasiyanso kugwiritsa ntchito ma charger a batri okhala ndi asidi; ngati chojambulira chanu sichingagwiritsidwe ntchito moyenera, siyani kugwiritsa ntchito nthawi yomweyo, ndipo musataye chithunzi chachikulu cha chaching'ono.
5. Samalani ndi moyo wa batri ndikusintha nthawi yake
Mabatire a lithiamukukhala ndi moyo. Mafotokozedwe osiyanasiyana ndi zitsanzo zimakhala ndi moyo wosiyana. Kuphatikiza apo, chifukwa chogwiritsa ntchito molakwika tsiku lililonse, moyo wa batri umachokera miyezi ingapo mpaka zaka zitatu. Galimoto ikatha mphamvu kapena moyo wa batri ndi waufupi modabwitsa, chonde lemberani ogwira ntchito yokonza batire ya lithiamu munthawi yake kuti muyigwire.
6. Siyani mphamvu zina m'nyengo yozizira
Kuti mugwiritse ntchito galimoto nthawi zonse kumapeto kwa chaka chamawa, ngati batire siligwiritsidwa ntchito kwa nthawi yayitali, kumbukirani kulipiritsa mpaka 50% -80%, kuchotsani m'galimoto kuti musungidwe, ndikulipiritsa nthawi zonse, pafupifupi kamodzi pamwezi. Zindikirani: Batire iyenera kusungidwa pamalo owuma.
7. Ikani batire molondola
Osamiza batire m'madzi kapena kuyinyowetsa; osayika batire yopitilira zigawo 7, kapena kutembenuza komwe batire ikupita.
Mapeto
Pa -20 ℃, mphamvu yotulutsa mabatire a lithiamu-ion ndi pafupifupi 31.5% yokha ya kutentha kwa chipinda. Kutentha kogwiritsa ntchito kwa mabatire amtundu wa lithiamu-ion kuli pakati pa -20 ndi +55 ℃. Komabe, m'minda yazamlengalenga, makampani ankhondo, magalimoto amagetsi, ndi zina zambiri, mabatire amayenera kugwira ntchito pafupipafupi -40 ℃. Chifukwa chake, kuwongolera kutentha kwamphamvu kwa mabatire a lithiamu-ion ndikofunikira kwambiri. Inde, alithiamu batiremakampani akukula mosalekeza, ndipo asayansi kupitiriza kuphunzira mabatire lifiyamu amene angagwiritsidwe ntchito pa kutentha otsika kuthetsa mavuto makasitomala.
Heltec Energy ndi mnzanu wodalirika pakupanga mapaketi a batri. Ndi kuyang'ana kwathu kosalekeza pa kafukufuku ndi chitukuko, pamodzi ndi mitundu yosiyanasiyana ya zida za batri, timapereka mayankho okhazikika kuti tikwaniritse zosowa zamakampani. Titha kusintha mabatire a lithiamu pazochitika zosiyanasiyana kwa makasitomala. Ngati mukufuna kukweza batire yanu ya lithiamu kapena sinthani bolodi yoteteza, chonde titumizireni.
Ngati muli ndi mafunso kapena mukufuna kudziwa zambiri, musazengereze kuterokufikira kwa ife.
Pempho la Mawu:
Jacqueline:jacqueline@heltec-bms.com/ +86 185 8375 6538
Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
Nancy:nancy@heltec-bms.com/ +86 184 8223 7713
Nthawi yotumiza: Oct-09-2024