A Heat Resistant and Flame-Retardant Polysulfonamide/Polypropylene Composite Nonwoven for High Performance Lithium Ion Battery Separator | Zendy

Liping Yue | Zendy; Jianjun Zhang | Zendy; Zhihong Liu | Zendy; Qingshan Kong | Zendy; Xinhong Zhou | Zendy; Quan Xu | Zendy; Jianhua Yao | Zendy; Guanglei Cui | Zendy

Open Access

A Heat Resistant and Flame-Retardant Polysulfonamide/Polypropylene Composite Nonwoven for High Performance Lithium Ion Battery Separator

Author(s) -

Liping Yue,

Jianjun Zhang,

Zhihong Liu,

Qingshan Kong,

Xinhong Zhou,

Quan Xu,

Jianhua Yao,

Guanglei Cui

Publication year - 2014

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/2.059406jes

Subject(s) - polypropylene , separator (oil production) , materials science , composite number , lithium cobalt oxide , composite material , fire retardant , lithium ion battery , thermal stability , electrolyte , chemical engineering , battery (electricity) , electrode , chemistry , power (physics) , physics , thermodynamics , quantum mechanics , engineering

A heat resistant and flame-retardant polysulfonamide/polypropylene composite nonwoven has been developed and exploited as an advanced separator for high performance lithium ion battery via melt-blown spinning followed by a phase-inversion process. It was manifested that such composite nonwoven exhibited improved flame retardance, superior thermal resistance and better electrolyte wettability as compared to commercialized polypropylene separator. It was also demonstrated that the lithium cobalt oxide (LiCoO2)/graphite cells employing the composite separator possessed better rate capability and superior cycling stability than those of polypropylene separator. Furthermore, this study verified the beneficial impact of polysulfonamide/polypropylene composite separator with respect to commercial polypropylene separator on cycle performance of lithium iron phosphate (LiFePO4)/lithium (Li) cells even at an elevated temperature of 120 degrees C. These fascinating results suggest that such composite nonwoven is promising separator for high performance lithium ion battery. (C) 2014 The Electrochemical Society. All rights reserved.

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