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鋰離子電池隔膜研究進(jìn)展

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摘要:隔膜位于鋰離子電池的正極和負(fù)極之間,是電池的重要組成部分之一,對電池的安全性起著至關(guān)重要的作用。本文介紹了聚烯烴基、非織造布和纖維素紙基鋰離子電池隔膜及其復(fù)合隔膜的研究進(jìn)展,分析了各類隔膜材料的優(yōu)缺點(diǎn)及其對電池電化學(xué)性能的影響,并對鋰離子電池隔膜的發(fā)展趨勢進(jìn)行了展望。

關(guān)鍵詞:鋰離子電池;隔膜;生產(chǎn)工藝;纖維素

中圖分類號: TS761.2  文獻(xiàn)標(biāo)識碼: A DOI:10.11980/j. issn.0254-508X.2022.02.016

Research Progress of Lithium-ion Battery Separators

ZHANG Xiaochen1,2   LIU Wen1,2,*   CHEN Xuefeng1,2   LIU Junjie3   SHEN Zhenhuang3

(1. China National Pulp and Paper Research Institute Co.,Ltd.,Beijing,100102;2. National Engineering Labfor Pulp and Paper,Beijing,100102;3. Sinolight(Jinjiang)Hygiene Products Research Co.,Ltd.,Jinjiang,F(xiàn)ujian Province,362200)

(*E-mail:liuwen0412@126. com)

Abstract:The separator is located between the positive and negative electrode of a lithium-ion battery,which is one of the important compo?nents of the battery and plays a vital role in the safety of the battery. This paper reviews the research progress of polyolefin-based,non-woven fabric,and cellulose paper-based/composite lithium-ion battery separators. The advantages and disadvantages of various separator materials and their impact on battery performance are analyzed,and the development trend of lithium-ion battery separators is prospected as well.    Key words:lithium-ion battery; separator; production technology;cellulose

可充電鋰離子電池作為一種可以將化學(xué)能與電能相互轉(zhuǎn)化的電化學(xué)電池,具有功率密度高、無記憶效應(yīng)、自放電率低等優(yōu)點(diǎn)[1],在手機(jī)、平板電腦等便攜式電子產(chǎn)品[2],航天器、月球探測器等航天設(shè)備[3]及儲能系統(tǒng)和新能源汽車[4]等新興領(lǐng)域中得到廣泛應(yīng)用。(剩余19173字)

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