Nzira yekupa sei lithium-ion bhatiri "thermal out of control" kuisa mabhureki!

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Προμηθευτής φορητών σταθμών παραγωγής ενέργειας

Kupisa kunze-kwe-kudzora ndiyo yakaipisisa njodzi yekuchengetedza mukushandiswa kwe lithium-ion mabhatiri. Iyo inopisa kunze kwekutonga kunowanzo kukonzerwa ne lithium ion bhatiri umo diaphragm inoparadzwa, kana diaphragm yakaputsika, kana nekuda kwekunze kupfupi kutenderera kunze kwebhatiri. Izvo zvakakonzera huwandu hwakawanda hwekupisa, hunokonzera huwandu hwakawanda hwekupisa, hunotanga yakanaka uye yakaipa electrode inoshanda zvinhu uye electrolyte, zvichiita kuti lithium-ion bhatiri kudzivirira uye kuputika, kutyisidzira zvakanyanya hupenyu nekuchengetedzwa kwepfuma yevashandisi.

Naizvozvo, iyo lithium-ion bhatiri inozodiwa mu lithium ion bhatiri yekuchengetedzwa kwebhatiri, uye lithium ion bhatiri inodiwa kuti ipfuure yakawandisa, overprint, pfupi dunhu uye extrusion, acupuncture, asi nekuenderera mberi kwekuvandudzwa kwesimba lithium bhatiri simba density uye bhatiri huwandu, bhatiri rakapfuura acupuncture Muedzo wakawedzera kuoma, saka iyo acupun inoiswa muyedzo yeAcupun Zvinodikanwa zveMotokari dzeMagetsi] zvakaziviswa muBazi reIndasitiri uye Ruzivo rweTekinoroji. Nekudaro, iyo vhezheni nyowani haidi chekuita neiyo acupuncture bvunzo. Zvadaro, hazvibviri kuzvidzorera.

Kana mugadziri awana hukuru hukuru, yakakwirira-simba density simba lithium bhatiri yakatsetseka kuburikidza neacupuncture bvunzo, zvino ichave yakakosha mumakwikwi. Zvakanakira. Nhasi tichataura pamusoro peaya maitiro ekuti "brake" kurasikirwa ne "mabhureki" kune lithium-ion mabhatiri.

1. Electrolytic liquid flame retardant electrolyte flame retardant inzira inoshanda kwazvo yekudzikisa kupisa kwebhatiri kunze kwekutonga, asi izvi zvinodzosa moto zvinowanzova nechakavanzika che electrochemical kuita kwe lithium-ion mabhatiri, saka zvakaoma kushandisa mukushandiswa chaiko. Kuti agadzirise dambudziko iri, timu yeYuqiao yeSheng Diego, California, China [1] inochengetedza DBA (dibenzylamine) mukati meiyo microcapsules mukati meiyo capsule package, kupararira mu electrolyte, hazvizoiti. "chepfu" inokonzeresa kutadza kwebhatiri, nekudaro kudzivirira kuitika kwekupisa kusingadzoreki.

2018 Yuqiao team [2] zvakare inoshandisa nzira iri pamusoro apa, ethylene glycol uye ethylenediamine inoshandiswa semurazvo wemoto, uye chikamu chemukati che lithium ion bhatiri inotakurwa mubhatiri ye lithium-ion yadonha ne70% mumuedzo we acupuncture. Yakaderedza zvakanyanya njodzi yekupisa kunze kwekutonga kwe lithium ion mabhatiri. Nzira yataurwa pamusoro apa ndeyekuzviparadza, ndiko kuti, kana murazvo wemoto uchinge washandiswa, bhatiri re lithium-ion rinoraswa, uye boka reAtsuoyamada reTokyo University, Japan [3] rakagadzira rudzi rwunobva ku lithium Flame retardant electrolyte yeion battery properties, electrolytic solution inoshandisa high concentrations yeNalin (SO2F) kana Nalin (SO2F) (LIFSA) se lithium munyu, uye yakajairika murazvo retardant inowedzerwa ipapo.

Iyo ester TMP yakagadzirisa zvakanyanya kugadzikana kwekupisa kwe lithium-ion bhatiri, iro rinotonyanya kusimba. Kuwedzerwa kwemoto unodzoreredza hakukanganise kutenderera kwekuita kwe lithium ion bhatiri, uye bhatiri rinotora electrolyte rinogona kutenderedzwa zvakapetwa kanopfuura ka1000 (C / 5) 1200 nguva mukutenderera, chiyero chekuchengetedza simba 95%). Kuburikidza nekuwedzera, iyo lithium ion bhatiri ine murazvo unodzoreredza pfuma kudzivirira imwe yenzira dzekupisa kunze kwekutonga kwe lithium ion mabhatiri, uye vamwe vanhu vane imwe nzira, vachiedza kudzivirira kuitika kwemapfupi mabhatiri mu lithium ion mabhatiri anokonzerwa nemidzi kubva pamudzi chikonzero, nekudaro kuzadzisa chinangwa chekutora pasi peketero.

Nyatsobvisa kuitika kwekupisa kunze kwekutonga. Panyaya yeiyo dynamic lithium bhatiri iri kushandiswa, inogona kutarisana nechisimba, iyo Gabrielm yeAmerican Oak Ridge National Laboratory. Veith yakagadzira electrolyte [4] ine shear thickening property, iyo inoshandisa hunhu hwemvura isiri yeNewtonian.

Mumamiriro akajairika, iyo electrolyte inopa mamiriro emvura, asi kana yasangana nekungoerekana yakanganisa Iyo yakasimba mamiriro anozoitwa zvisina kujairika, uye inogona kutozadzisa mhedzisiro yebulletproof. Kubva pamudzi wechikonzero, njodzi yekurasikirwa kwekupisa mubhatiri inodzivirirwa panguva yekuputsika mune simba lithium bhatiri. 2.

Chimiro chebhatiri chinotitora kuti tione kupa kupisa kunze kwekutonga, uye ikozvino lithium-ion bhatiri parizvino iri kufunga nezve dambudziko rekupisa kusingadzoreki mukugadzira dhizaini, senge pabutiro repamusoro ra18650. Iko kunowanzo kuve nevhavha yekudzivirira kumanikidza, uye zvinokwanisika kusunungura kudzvanywa mukati mebhatiri panguva yekupisa kusingadzoreki. Iyo yakanaka tembiricha coefficient zvinhu PTC mune yechipiri bhatiri yekumusoro kavha inowedzerwa zvakanyanya kana kupisa kurasikirwa tembiricha kunowedzera.

Deredza ikozvino kuderedza kupisa. Uye zvakare, iyo pfupi-yedunhu dhizaini pakati peiyo yakanaka uye yakaipa electrode inofungidzirwa mukugadzirwa kweiyo monomer bhatiri chimiro, uye zvinhu zvakaita sekusashanda zvakanaka, esimbi zvinhu, nezvimwewo, zvichikonzera njodzi dzekuchengetedza.

Chechipiri, kana bhatiri rakagadzirwa, diaphragm yakachengeteka inoshandiswa, semuenzaniso, matatu-layer composite diaphragm ye otomatiki shuttle pakudziya kwakanyanya, asi mumakore achangopfuura, nekuenderera mberi kwekuvandudzwa kwesimba rebhatiri remagetsi, iyo matatu-layer composite diaphragm yave Iyo ceramic coating diaphragm iyo zvishoma nezvishoma yakabviswa, iyo ceramic coating, kutsigira iyo diaphrag yekushongedza inogona kushandiswa. separator pakupisa kwepamusoro, kuvandudza kugadzikana kwekupisa kwebhatiri ye lithium ion, kuderedza njodzi yekupisa kunze kwekutonga kwe lithium ion mabhatiri. 3. Bhatiri pack kupisa kuchengetedza dhizaini Iyo simba lithium bhatiri inowanzoshandiswa mukushandiswa, mazana kana kunyange zviuru zvemabhatiri anoumbwa akafanana, seTesla&39;s Models bhatiri mapaketi kubva kune anopfuura zviuru zvinomwe.

Iyo 18650 kuumbwa, kana imwe yemabhatiri ikaitika, inogona kupararira mubhatiri pack, zvichikonzera mhedzisiro yakakomba. Semuenzaniso, muna Ndira 2013, ndege yeJapan Airlines yekuBoston, USA, ndege inotakura vanhu yeBoeing 787, zvichibva mukuferefetwa kweUS National Transport Safety Commission, yakakonzerwa ne75AH square lithium-ion bhatiri riri mubhatiri pack. Mushure mekurasikirwa kwekutonga, iyo iri padyo nebhatiri inopisa kunze kwekutonga yakasimudzwa.

Mushure mechiitiko ichi, Boeing yakakumbira matanho ekuwedzera kupisa kunze-kwekudzora kupararira pane ese mabhatiri mapaketi. Kuitira kudzivirira kupisa kubva pakusadzora mukati me lithium ion bhatiri, US AllCelltechnology yakagadzira lithium-ion bhatiri thermal out-control isolation material yakavakirwa pachikamu chekuchinja zvinhu [5]. PCC zvinhu zvakazadzwa pakati pe monomer lithium ion bhatiri, mune iyo iyo lithium ion bhatiri pack iri kushanda nemazvo, kupisa kwebhatiri pack kunogona kukurumidza kuendeswa kune bhatiri pack kuburikidza nePCC zvinhu, uye kana kupisa kwekupisa kwe lithium ion bhatiri, PCC zvinhu Inogona kunyungudutswa kuburikidza neparafini zvinhu ipapo kuti itore huwandu hukuru hwekupisa, kudzivirira kuwedzera kupisa kwebhatiri, kudzivirira kupararira kwebhatiri kunze, kudzivirira kupararira kwebhatiri. pack.

Muchiyedzo cheacupuncture, bhatiri pack rakapetwa kubva ku18650 mabhatiri, uye kana pasina PCC zvinhu, bhatiri rinopisa risingadzoreki rinozopedzisira ratungamira kumabhatiri e20 mubhatiri pack, uye kushandisa PCC zvinhu. Mubhatiri pack, bhatiri rinopisa risingadzoreki harikonzeri mamwe mabhatiri mapaketi. Lithium-ion battery thermal out-of control ndiyo yedu yakanyanya kuzeza kuona njodzi yekuchengetedzwa kwekudzivirira kwakasimba, kuvandudza kuchengetedzwa kwemabhatiri e-lithium-ion, kudzivirira kupisa kunze kwekutonga, uye kugadzirwa kwekugadzirisa kupisa kubva mubhatiri formula dhizaini, dhizaini yekugadzira uye bhatiri pack.

Pasi pechubhu repamusoro, kubatanidza-kunatsiridza kwekushisa kwe lithium-ion bhatiri, kuderedza mukana wekurasikirwa kwekupisa. .