Mabatire a lithiamu-ion ndi ukadaulo wopezeka paliponse wokhala ndi vuto lalikulu: nthawi zina amagwira moto.
Kanema wa ogwira ntchito ndi okwera ndege ya JetBlue akutsanulira madzi m'zikwama zawo movutikira amakhala chitsanzo chaposachedwa kwambiri cha nkhawa za mabatire, zomwe tsopano zitha kupezeka pafupifupi pazida zilizonse zomwe zimafuna mphamvu zosunthika.Pazaka khumi zapitazi, pakhala kuwonjezeka kwa mitu yokhudza moto wa batri ya lithiamu-ion chifukwa cha njinga zamagetsi, magalimoto amagetsi ndi ma laputopu pamaulendo apaulendo.
Kuchulukirachulukira kwa anthu kwalimbikitsa ofufuza padziko lonse lapansi kuti agwire ntchito yopititsa patsogolo chitetezo ndi moyo wautali wa mabatire a lithiamu-ion.
Zatsopano za batri zakhala zikuphulika m'zaka zaposachedwa, ndi ofufuza akupanga mabatire olimba posintha ma electrolyte amadzimadzi omwe amatha kuyaka m'mabatire a lithiamu-ion omwe ali ndi zida zolimba za electrolyte monga ma gels osayaka, magalasi opangidwa ndi inorganic ndi ma polima olimba.
Kafukufuku wofalitsidwa sabata yatha m'magazini ya Nature akuwonetsa njira yatsopano yotetezera kuteteza mapangidwe a lithiamu "dendrites," omwe amapanga pamene mabatire a lithiamu-ion amawotcha chifukwa cha kuchulukitsitsa kapena kuwononga dongosolo la dendritic.Ma dendrites amatha kuthamangitsa mabatire ndikuyambitsa moto wophulika.
"Phunziro lililonse limatipatsa chidaliro chochulukirapo kuti titha kuthana ndi chitetezo ndi zovuta zosiyanasiyana zamagalimoto amagetsi," adatero Chongsheng Wang, pulofesa waukadaulo wamankhwala ndi biomolecular ku yunivesite ya Maryland komanso wolemba wamkulu wa kafukufukuyu.
Kukula kwa Wang ndi gawo lofunikira pakuwongolera chitetezo cha mabatire a lithiamu-ion, adatero Yuzhang Li, pulofesa wothandizira waukadaulo wamankhwala ku UCLA yemwe sanachite nawo kafukufukuyu.
Lee akugwira ntchito yake luso, kupanga m'badwo wotsatira lifiyamu zitsulo batire kuti akhoza kusunga nthawi 10 mphamvu kuposa graphite elekitirodi zigawo zikuluzikulu mu chikhalidwe mabatire lifiyamu-ion.
Pankhani ya chitetezo chamagetsi amagetsi, Lee adati mabatire a lithiamu-ion si owopsa kapena ofala monga momwe anthu amaganizira, komanso kumvetsetsa ma protocol achitetezo a lithiamu-ion ndikofunikira.
"Magalimoto amagetsi ndi magalimoto wamba ali ndi zoopsa zomwe zimachitika," adatero."Koma ndikuganiza kuti magalimoto amagetsi ndi otetezeka chifukwa simukhala pamadzi oyaka moto."
Lee adawonjezeranso kuti ndikofunikira kutenga njira zodzitetezera pakuwonjezera kapena ngozi yagalimoto yamagetsi ikachitika.
Ofufuza omwe amaphunzira zamoto wa batri wa lithiamu-ion ku bungwe lopanda phindu la Fire Research Foundation adapeza kuti moto wamagalimoto amagetsi ndi wofanana kwambiri ndi moto wamagalimoto amtundu wamafuta amafuta, koma moto wamagalimoto amagetsi umatenga nthawi yayitali, umafunikira madzi ochulukirapo kuti uzimitse ndipo umakhala wochulukirapo. zokhoza kuyaka.kachiwiri.maola angapo lawi lizimiririka chifukwa cha mphamvu yotsalira mu batire.
Victoria Hutchison, woyang'anira wamkulu wa pulogalamu ya kafukufuku wa maziko, adati magalimoto amagetsi amachititsa chiopsezo chapadera kwa ozimitsa moto, oyankha oyambirira ndi oyendetsa galimoto chifukwa cha mabatire awo a lithiamu-ion.Koma sizikutanthauza kuti anthu ayenera kuwaopa, anawonjezera.
"Tikuyesabe kumvetsetsa kuti moto wamagalimoto amagetsi ndi chiyani komanso momwe tingathanirane nawo," adatero Hutcheson.“Ndi njira yophunzirira.Takhala ndi magalimoto a injini zoyatsira mkati kwa nthawi yayitali, sizodziwika, koma tiyenera kuphunzira momwe tingachitire ndi zochitikazi moyenera. "
Kudetsa nkhawa zamoto wamagalimoto amagetsi kumathanso kukweza mitengo ya inshuwaransi, atero a Martti Simojoki, katswiri wopewa kutayika ku International Union of Marine Insurance.Iye adati kupanga inshuwaransi yamagalimoto amagetsi ngati katundu pakali pano ndi imodzi mwamabizinesi osawoneka bwino kwa a inshuwaransi, zomwe zitha kukweza mtengo wa inshuwaransi kwa omwe akufuna kunyamula magalimoto amagetsi chifukwa chakuopsa kwa moto.
Koma kafukufuku wa International Union of Marine Insurance, gulu lopanda phindu loimira makampani a inshuwalansi, anapeza kuti magalimoto amagetsi sali owopsa kapena owopsa kuposa magalimoto wamba.M'malo mwake, sizinatsimikizidwe kuti moto wonyamula katundu wapamwamba kwambiri kuchokera ku gombe la Dutch chilimwechi unayambitsidwa ndi galimoto yamagetsi, ngakhale kuti mitu yankhani ikunena kuti sichoncho, adatero Simojoki.
"Ndikuganiza kuti anthu amazengereza kuchita ngozi," adatero."Ngati chiwopsezo chakwera, mtengo ukhala wokwera.Pamapeto pake, wogula amalipira. ”
Kuwongolera (Nov. 7, 2023, 9:07 am ET): Nkhani yam'mbuyomu sinatchule molakwika dzina la wolemba wamkulu wa kafukufukuyu.Iye ndi Wang Chunsheng, osati Chunsheng.