Dzivirira tsaona yekupisa kwemotokari yemagetsi solid-state kuchaja lithium bhatiri kana mhinduro

著者：Iflowpower – Portable Power Station Supplier

Traditional liquid lithium-ion bhatiri, nemasayendisiti "rocked chair mabhatiri", chigaro chinozunguza ndiyo matanda akanaka uye asina kunaka ebhatiri, pakati ielectrolyte (mvura). Pakati pavo, iyo lithium ion inomhanya nekudzoka pakati pematanda maviri evatambi vanoshingaira, uye kubhadharisa uye kubudiswa kwebhatiri kunopedzwa panguva yekushanda. Zvisinei, chimiro ichi chinoita sechinonakidza chine njodzi dzakavanzika.

Maererano nehuwandu husina kukwana, motokari yemagetsi yakatora njodzi dzinopisa gumi muhafu yekutanga yegore rino. Chikwata chekudzima moto chinopfupisa izvi, uye chiitiko chinowanzoitika chemotokari itsva yemagetsi chinoratidzwa nekupisa panguva yekuchaja. Mukuwedzera, bhatiri richave richipisa panguva yekutyaira kana kumira.

Kuchengetedzwa kwepamusoro, kunogona kugara nhaka yerithium-ion bhatiri "Jianghu mamiriro" emvura lithium-ion bhatiri nei mvura lithium ion bhatiri ichaputika, vamwe vaongorori, chikonzero ndechekuti yechinyakare lithium-ion bhatiri inogona kuve nebazi re lithium pane yakakura ikozvino, saka puncture Iyo diaphragm inokonzera kupfupi-circuit kuparadzwa; iyo electrolyte is an organic liquid, iyo inozowedzera kuita kwedivi, oxidative decomposition, gasi, uye kupisa kunoitika pakupisa kwakanyanya. Mumakore achangopfuura, nharaunda yezvidzidzo, indasitiri yeindasitiri inotenda kuti kushandiswa kwemabhatiri ehurumende kwakachengeteka, zvichienderana nekuti bhatiri re lithium-ion rinogona kugara nhaka ye "nzizi uye dhamu". "Chitubu chekuchengetedza simba chasvika, indasitiri yekuchengetedza simba yatanga kutumbuka, mumhando dzese dzesimba rekuchengetedza tekinoroji, bhatiri rekuchengetedza rinonyanya kunetseka, uye zvakare ndiyo inokurumidza kukurumidza kuchengetedza tekinoroji nzira.

Iyo yakazara solid-state lithium-ion bhatiri ndiyo yakanaka kemikari magetsi ekupa muchiyero. "Purofesa Chen Yongyi, nyika yangu Institute of Electrical Research Institute, China. Nyanzvi dzinotenda kuti iyo yakazara solid-state lithium-ion bhatiri inoshandisa solid-state electrolytes kutsiva yechinyakare organic liquid electrolyte, iyo inotarisirwa kugadzirisa zvakanyanya matambudziko ekuchengetedza bhatiri, ndiyo yakanakira kemikari magetsi emagetsi emagetsi uye yakakura-chiyero chekuchengetedza simba.

Beijing Institute of Technology Electric Vehicle Vehicle National Engineering Laboratory, Sun Liqing, komiti yemagetsi yemagetsi komiti yenyika yangu Electrical Technology Society, yakataura kuti mutsauko mune yakasimba-state lithium-ion bhatiri kana ichienzaniswa neyakajairwa lithium-ion mabhatiri ari mu electrolyte solid state, theoretical mukana. Sezvo bhatiri rakasimba re lithium ion rinoshandiswa ne lithium, girazi regirazi rakagadzirwa nesodium chinhu chinofambisa, chinotsiva electrolyte ye lithium ion bhatiri, inosimudzira zvakanyanya kuwanda kwesimba re lithium ion bhatiri. Iine solid-state electrolytes, inogona kudzivirira zvimwe zvezvikamu mubhatiri.

Nyanzvi sumo, kuwanda uye chimiro cheakasimba lithium ion mabhatiri anobvumira akawanda tepi ions kuunganidza pamusoro peimwe mugumo, kuitisa yakakura ikozvino, uye kuwedzera bhatiri huwandu. Naizvozvo, muhuwandu hwakafanana hwesimba, iyo yakasimba state bhatiri vhoriyamu ichava diki. Uyezve, sezvo pasina electrolyte mune yakasimba state bhatiri, kuchengetedza kuchava nyore.

Kana ichishandiswa pamidziyo mikuru senge mota, hapana yakawedzera kutonhora chubhu, zvemagetsi zvinodzora, nezvimwewo, kwete chete kuchengetedza mari, asiwo zvinobudirira kuderedza uremu. Iko kusimukira kuchiri munzira, dzimwe nyaya dzakakosha dzinofanirwa kupaza nekupinzwa kwemaelectrolyte akasimba mumabhatiri e-lithium-ion, uye kupaza neazvino organic electrolyte kuvapo, kuvandudza simba rebhatiri, simba, tembiricha yemhando, uye chengetedzo.

Uye nyanzvi dzemusangano, zvechokwadi dzinoona zvinangwa izvi, dzichiri kuda kutanga kugadzirisa dambudziko rezvinhu zviripo zve electrolyte pachayo uye iyo electrode interface. Qi Jun, mutevedzeri wemuongorori, Shanghai Silicate Institute, nyika yangu, akataura kuti mumakore achangopfuura, mumakore achangopfuura, marabhoritari yavo yakakosha kugadzira lithium sulfur bhatiri system uchishandisa yakasimba electrolytes. Mushure mekugadzirisa simbi lithium ine solid-state electrolyte, kutenderera kugadzikana kwebhatiri kunogona kuvandudzwa.

Vakurudzirawo dual electrolyte system lithium sulfur bhatiri pfungwa, vachishandisa yakasimba electrolyte ine lithium ion conductive pfuma LAGP system, uye shoma shoma yemvura electrolyte yakanyorova mune yakanaka uye yakaipa electrolyte, mhedzisiro yebvunzo inogona kuonekwa kuti yekutanga kubuda reshiyo yehuwandu inogona Kuderera inopfuura 80% yeiyo theoretical kugona uye inovhara 0% yemahara, kunyanya kuburitsa 0% yemahara, kunyanya kuburitsa 0% yemahara. shuttle effect mune liquid lithium sulfur bhatiri. Kuti uwedzere kugadzirisa dambudziko rekuchengetedza bhatiri, vanoisa iyi interface kuti ive nechokwadi chekuti hapana kuyerera kweiyo electrolyte inogadziriswa nepolymer, uye inogona zvakare kuvharira vhoriyamu mhedzisiro panguva yekutenderera. Li Liangliang, Associate Purofesa, Associate Purofesa weTsinghua University School of Materials, ari kugadzira prototype ye oxide solid electrolyte uye solid-state lithium-ion bhatiri, achishandisa matatu-dimensional positive electrode, yakasimba electrolyte membrane uye graphite load a negative electrode, bhatiri simba density, uye chaizvo kuchengeteka, zviuru zvenguva Kuchengeta 81% mushure mebhasikoro.

Pamberi, Hefei Boao Guoxing Energy Technology Co., Ltd., yakaratidza kuti laminated yakakura-inokwana yakasimba polymer lithium-ion bhatiri ikozvino yakagadzirwa, chimiro chiri nyore, node idiki, kwete kutonga sisitimu, uye chete munhevedzano pakuunganidza bhatiri pack pane kuenderana.

Neimwe yakasimba state electrolyte, iyo yechinyakare mvura electrolyte inogona kugadzirisa dambudziko rekudonha kwebhatiri uye dambudziko rekupisa, kunatsiridza kuchengetedzeka kwebhatiri. Ehe, iyo yakasimba mamiriro bhatiri kusimudzira kuchiri munzira, uye kuchine zvimwe zvakakosha zvekuputswa. Nyanzvi dzinoti mabhatiri akasimba anofanirwa kutariswa hupenyu hurefu, kuchengetedzwa, nezvimwe.

Uye zvakare, matambudziko akadai sevhoriyamu mhedzisiro, kugadzikana uye interface kuenderana panguva yenguva refu bhasikoro inodiwa zvakare.