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Porous cellulose di...
Porous cellulose diacetate-SiO2 composite coating on polyethylene separator for high-performance lithium-ion battery
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- Chen, Wenju (författare)
- Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China.;Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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- Shi, Liyi (författare)
- Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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- Wang, Zhuyi (författare)
- Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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- Zhu, Jiefang (författare)
- Uppsala universitet,Strukturkemi
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- Yang, Haijun (författare)
- Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
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- Mao, Xufeng (författare)
- Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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- Chi, Mingming (författare)
- Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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- Sun, Lining (författare)
- Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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- Yuan, Shuai (författare)
- Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China;Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China. Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China. (creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
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Ingår i: Carbohydrate Polymers. - : Elsevier BV. - 0144-8617 .- 1879-1344. ; 147, s. 517-524
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The developments of high-performance lithium ion battery are eager to the separators with high ionic conductivity and thermal stability. In this work, a new way to adjust the comprehensive properties of inorganic-organic composite separator was investigated. The cellulose diacetate (CDA)-SiO2 composite coating is beneficial for improving the electrolyte wettability and the thermal stability of separators. Interestingly, the pore structure of composite coating can be regulated by the weight ratio of SiO2 precursor tetraethoxysilane (TEOS) in the coating solution. The electronic performance of lithium ion batteries assembled with modified separators are improved compared with the pristine PE separator. When weight ratio of TEOS in the coating solution was 9.4%, the composite separator shows the best comprehensive performance. Compared with the pristine PE separator, its meltdown temperature and the break-elongation at elevated temperature increased. More importantly, the discharge capacity and the capacity retention improved significantly.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- Lithium ion battery separator
- Inorganic-organic composite coating
- Li+ ion conductivity
- Shutdown temperature
- Li-dendrites
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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