Kuenzaniswa nemamwe cylindrical uye sikweya mabhatiri, inochinjika kurongedzalithium mabhatirivari kuramba vachinyanya kufarirwa mukushandiswa nekuda kwezvakanakira flexible size design uye high energy density.Short-circuit kuyedza inzira inoshanda yekuongorora inochinjika yekurongedza lithium mabhatiri.Iri bepa rinoongorora yekutadza modhi yebhatiri pfupi-circuit bvunzo kuti ione izvo zvikuru zvinokanganisa kutadza kwepfupi-redunhu;inoongorora iyo yekutadza modhi nekuita bvunzo yemuenzaniso pasi pemamiriro akasiyana uye inopa mazano ekuvandudza kuchengetedzeka kweanochinjika ekurongedza mabhatiri lithium.
Short-circuit kukundikana kwekushandukakurongedza lithium mabhatirikazhinji inosanganisira kubuda kwemvura, kutsemuka kwakaoma, moto uye kuputika.Kudonha uye kuputika kwakaoma kunowanzoitika munzvimbo isina simba yegugi package, uko iyo aluminium package yakaoma kuputika inogona kuoneka zvakajeka mushure mebvunzo;moto uye kuputika kune njodzi zvakanyanya njodzi dzekugadzirwa kwekuchengetedza, uye chikonzero chinowanzova kuita kwechisimba kwe electrolyte pasi pemamwe mamiriro mushure mearuminiyamu epurasitiki yakaoma kuparuka.Nokudaro, kana ichienzaniswa nepfupi-circuit test ye flexible packaging lithium battery, mamiriro ealuminium-plastic package ndiyo chinhu chinokosha chinotungamirira kukukundikana.
Mune bvunzo pfupi-yedunhu, iyo yakavhurika-yedunhu voltage yebhatiripakarepo inodonha kusvika zero, nepo ikozvino huru inopfuura nepakati pedunhu uye Joule kupisa kunogadzirwa.Kukura kweJoule kupisa kunoenderana nezvinhu zvitatu: ikozvino, kuramba uye nguva.Kunyangwe iyo pfupi-yedunhu ikozvino iripo kwenguva pfupi yenguva, huwandu hukuru hwekupisa hunogona kugadzirwa nekuda kweiyo yakakwira ikozvino.Kupisa uku kunoburitswa zvishoma nezvishoma munguva pfupi (kazhinji maminetsi mashoma) mushure menguva pfupi, zvichikonzera kuwedzera kwekushisa kwebhatiri.Sezvo nguva ichiwedzera, kupisa kweJoule kunonyanya kuparadzirwa munzvimbo uye tembiricha yebhatiri inotanga kudonha.Nekudaro, zvinofungidzirwa kuti kutadza-kupfupi-kutadza kwebhatiri kunowanzoitika panguva yepfupi-sekete uye munguva pfupi pfupi inotevera.
Chiitiko chekuputira gasi chinowanzoitika mupfupi wedunhu bvunzo yekuchinjika packaging lithium bhatiri, iyo inofanirwa kukonzerwa nezvikonzero zvinotevera.Yokutanga ndiyo kusagadzikana kwemaitiro emagetsi emagetsi, kureva, iyo oxidative kana kuderedza kuparara kwe electrolyte kunokonzerwa nepamusoro-soro inopfuura nepakati pakati pe electrode uye electrolyte, uye zvigadzirwa zvegasi zvinozadzwa mualuminium-plastic package.Kubuda kwegasi kunokonzerwa nechikonzero ichi kunonyanya kuoneka pasi pemamiriro ekushisa kwepamusoro, nokuti electrolyte decomposition side reactions inowanzoitika pakupisa kwepamusoro.Pamusoro pezvo, kunyangwe iyo electrolyte ikasaita decomposition side reactions, inogona kunge yakaitwa vaporized ne Joule kupisa, kunyanya kune electrolyte zvikamu zvine low mhute pressure.Iyo gasi yekugadzira bulge inokonzerwa nechikonzero ichi inonyanya kunzwisiswa tembiricha, kureva, iyo bulge inonyangarika kana tembiricha yesero inodonha kusvika kukamuri tembiricha.Nekudaro, zvisinei nechikonzero chekugadzirwa kwegasi, iyo yakakwira mhepo mukati mebhatiri panguva pfupi yedunhu ichawedzera kuomeswa kwekupwanya kwealuminium-plastiki package uye kuwedzera mukana wekutadza.
Zvichienderana nekuongororwa kwemaitiro uye mashandiro ekutadza-pfupi-sekete kutadza, kuchengetedzwa kweinoshanduka kurongedza lithium.mabhatiriinogona kuvandudzwa kubva pane zvinotevera: optimizing iyo electrochemical system, kuderedza kunaka uye kwakashata nzeve kuramba, uye kuvandudza simba realuminium-plastiki package.Kugadziriswa kweiyo electrochemical system inogona kuitwa kubva kumakona akasiyana-siyana, akadai seakanaka uye asina kunaka anoshanda zvinhu, electrode ratio uye electrolyte, kuitira kuvandudza kugona kwebhatiri kutsungirira kwenguva pfupi yakakwira ikozvino uye yenguva pfupi kupisa kwakakwira.Kudzikisa kupikisa kwegugi kunogona kuderedza Joule kupisa chizvarwa uye kuunganidza munzvimbo ino uye zvakanyanya kuderedza kupisa kunokonzera panzvimbo isina simba yepakeji.Kuvandudza simba realuminium-plastic package inogona kuwanikwa kuburikidza nekugadzirisa zvigadziro mukugadzirwa kwebhatiri, zvakanyanya kuderedza kuitika kwekuoma kwakaoma, moto uye kuputika.
Nguva yekutumira: Kubvumbi-13-2023