Paketi ya batri imatha kupangidwa polumikiza mabatire angapo a lithiamu motsatizana, omwe sangangopereka mphamvu pazonyamula zosiyanasiyana, komanso amatha kuyimbidwa nthawi zonse ndi charger yofananira.Mabatire a lithiamu safuna makina oyendetsera batire (BMS) kuti azilipiritsa ndikutulutsa.Ndiye chifukwa chiyani mabatire onse a lithiamu pamsika akuwonjezedwa ndi BMS?Yankho lake ndi chitetezo ndi moyo wautali.
Dongosolo loyang'anira mabatire a BMS (Battery Management System) limagwiritsidwa ntchito kuyang'anira ndikuwongolera kuyitanitsa ndi kutulutsa mabatire omwe amatha kuchangidwanso.Ntchito yofunika kwambiri ya BMS yoyendetsera batire ya lithiamu ndikuwonetsetsa kuti batri imakhalabe pamalo otetezeka ogwiritsira ntchito komanso kuchitapo kanthu nthawi yomweyo ngati batire imodzi iyamba kupitilira malire.BMS ikazindikira kuti voteji ndiyotsika kwambiri, imachotsa katunduyo, ndipo ngati voteji yakwera kwambiri, chotsani charger.Iwonanso kuti cell iliyonse mu paketi ili ndi mphamvu yofananira ndikugwetsa iliyonse yomwe ili pamwamba kuposa ma cell ena.Izi zimawonetsetsa kuti batire silifika ma voltages owopsa kapena otsika - zomwe nthawi zambiri zimakhala chifukwa chamoto wa batri la lithiamu womwe timawona m'nkhani.Imatha kuyang'anitsitsa kutentha kwa batire ndikuchotsa paketi ya batri isanatenthe kwambiri ndikuyaka moto.Chifukwa chake, dongosolo la kasamalidwe ka batri la BMS ndikuteteza batire m'malo mongodalira chojambulira chabwino kapena zochita zolondola.
Chifukwa chiyani mabatire a lead-acid (AGM, mabatire a gel, kuzungulira kwakuya, ndi zina zotero) safuna dongosolo loyendetsera batire?Zigawo za mabatire a lead-acid sangawotchere kwambiri ndipo siziwotchera moto ngati pali vuto la kulipiritsa kapena kutulutsa.Koma chifukwa chachikulu ndichochita ndi khalidwe pamene batire yadzaza kwathunthu.Mabatire a asidi amtovu amapangidwanso ndi maselo olumikizidwa motsatizana;ngati selo imodzi imayendetsedwa pang'ono kuposa maselo ena, idzalola kuti panopa idutse mpaka ma cell ena atayimitsidwa, ndikusunga magetsi oyenerera okha, etc. Mabatire akugwira.Mwanjira iyi, batire ya acid-lead "imadziwongolera" momwe ikuyitanitsa.
Mabatire a lithiamu ndi osiyana.Elekitirodi yabwino ya batire ya lithiamu yowonjezeredwa nthawi zambiri imakhala ya lithiamu ion.Mfundo yake yogwira ntchito imatsimikizira kuti panthawi yoperekera ndi kutulutsa, ma elekitironi a lithiamu adzathamangira kumbali zonse za ma electrode abwino ndi oipa mobwerezabwereza.Ngati voteji ya selo limodzi amaloledwa kukhala apamwamba kuposa 4.25v (kupatula mkulu voteji lithiamu mabatire), anode microporous dongosolo akhoza kugwa, zinthu zolimba crystalline akhoza kukula ndi kuyambitsa dera lalifupi, ndiyeno kutentha adzauka mofulumira. , zomwe zidzayambitsa moto.Selo ya lithiamu ikadzaza, mphamvuyi imakwera mwadzidzidzi ndipo imatha kufika pamlingo wowopsa.Ngati magetsi a cell mu batire paketi ndi apamwamba kuposa ma cell ena, cell iyi imayamba kufika pa voliyumu yowopsa panthawi yolipiritsa, ndipo voteji yonse ya paketi ya batri sinafike pamtengo wathunthu panthawiyi, chojambulira chidzafika. osasiya kulipiritsa .Chifukwa chake, selo loyamba kuti lifike pamagetsi owopsa limakhala pachiwopsezo chachitetezo.Chifukwa chake, kuwongolera ndi kuyang'anira kuchuluka kwa batire la batire sikukwanira ma chemistries a lithiamu, voteji ya cell iliyonse yomwe imapanga batire paketi iyenera kuyang'aniridwa ndi BMS.
Mwanjira yopapatiza, kasamalidwe ka batri BMS imagwiritsidwa ntchito poteteza mapaketi akulu a batri.Zomwe zimagwiritsidwa ntchito ndi mabatire amphamvu a lithiamu iron phosphate, omwe ali ndi ntchito zoteteza monga kuchulukitsitsa, kutulutsa, kuchulukirachulukira, kufupikitsa, ndi kuchuluka kwa cell.Madoko olumikizirana, kuyika kwa data ndi zosankha zotulutsa ndi ntchito zina zowonetsera ndizofunikira.Mwachitsanzo, kulumikizana mawonekedwe a Xinya a akatswiri makonda BMS ndi motere.
M'lingaliro lalikulu, Protection Circuit Board (PCB), yomwe nthawi zina imatchedwa PCM (Protection Circuit Module), ndi njira yosavuta yoyendetsera batire ya BMS.Amagwiritsidwa ntchito pamapaketi ang'onoang'ono a batri.Amagwiritsidwa ntchito kwambiri pamabatire a digito, monga mabatire a foni yam'manja, mabatire a kamera, mabatire a GPS, mabatire otenthetsera zovala, ndi zina zambiri. overdischarge, overcurrent, and short circuit.Mabatire ena angafunikenso PTC ndi NTC.
Choncho, kuonetsetsa chitetezo ndi moyo wautali utumiki wa lithiamu batire mapaketi, batire kasamalidwe dongosolo BMS ndi khalidwe lodalirika chofunika kwenikweni.
Nthawi yotumiza: Mar-31-2022