Journal ArticleDOI
Separator technologies for lithium-ion batteries
TLDR
In this paper, the authors present an overview of separator characterization techniques, reviews existing technologies for producing different types of separators, and discusses directions for future investigation, which should lead to further improvements in the performance and abuse tolerance as well as cost reduction of Li-ion batteries.Abstract:
Although separators do not participate in the electrochemical reactions in a lithium-ion (Li-ion) battery, they perform the critical functions of physically separating the positive and negative electrodes while permitting the free flow of lithium ions through the liquid electrolyte that fill in their open porous structure. Separators for liquid electrolyte Li-ion batteries can be classified into porous polymeric membranes, nonwoven mats, and composite separators. Porous membranes are most commonly used due to their relatively low processing cost and good mechanical properties. Although not widely used in Li-ion batteries, nonwoven mats have the potential for low cost and thermally stable separators. Recent composite separators have attracted much attention, however, as they offer excellent thermal stability and wettability by the nonaqueous electrolyte. The present paper (1) presents an overview of separator characterization techniques, (2) reviews existing technologies for producing different types of separators, and (3) discusses directions for future investigation. Research into separator fabrication techniques and chemical modifications, coupled with the numerical modeling, should lead to further improvements in the performance and abuse tolerance as well as cost reduction of Li-ion batteries.read more
Citations
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Journal ArticleDOI
Thermal runaway mechanism of lithium ion battery for electric vehicles: A review
TL;DR: In this article, the authors provided a comprehensive review on the thermal runaway mechanism of the commercial lithium ion battery for electric vehicles, and a three-level protection concept was proposed to help reduce thermal runaway hazard.
Journal ArticleDOI
Radiative human body cooling by nanoporous polyethylene textile
Po-Chun Hsu,Alex Y. Song,Peter B. Catrysse,Chong Liu,Yucan Peng,Jin Xie,Shanhui Fan,Yi Cui,Yi Cui +8 more
TL;DR: It is shown that nanoporous polyethylene (nanoPE) is transparent to mid-infrared human body radiation but opaque to visible light because of the pore size distribution, and processed the material to develop a textile that promotes effective radiative cooling while still having sufficient air permeability, water-wicking rate, and mechanical strength for wearability.
Journal ArticleDOI
Materials Science and Materials Chemistry for Large Scale Electrochemical Energy Storage: From Transportation to Electrical Grid
Jun Liu,Ji-Guang Zhang,Zhenguo Yang,John P. Lemmon,Carl H. Imhoff,Gordon L. Graff,Liyu Li,Jian Z. Hu,Chong M. Wang,Jie Xiao,Guanguang Xia,Vilayanur V. Viswanathan,Suresh Baskaran,Vincent L. Sprenkle,Xiaolin Li,Yuyan Shao,Birgit Schwenzer +16 more
TL;DR: In this article, the status and challenges of large-scale electrical energy storage have been reviewed from the perspective of materials science and materials chemistry in electrochemical energy storage technologies, such as Li-ion batteries, sodium (sulfur and metal halide) batteries, Pb-acid battery, redox flow batteries, and supercapacitors.
Journal ArticleDOI
Characterization and performance evaluation of lithium-ion battery separators
TL;DR: Wood et al. as discussed by the authors reviewed the impact of separator structure and chemistry on lithium ion battery performance and assessed characterization techniques relevant for understanding structure-performance relationships in separator membranes, and provided an outlook on next-generation separator technology.
Journal ArticleDOI
High-voltage and free-standing poly(propylene carbonate)/Li6.75La3Zr1.75Ta0.25O12 composite solid electrolyte for wide temperature range and flexible solid lithium ion battery
Jianjun Zhang,Xiao Zang,Huijie Wen,Tiantian Dong,Jingchao Chai,Yang Li,Bingbing Chen,Jingwen Zhao,Shanmu Dong,Jun Ma,Liping Yue,Zhihong Liu,Xiangxin Guo,Guanglei Cui,Liquan Chen +14 more
TL;DR: In this paper, a free-standing poly(propylene carbonate)/Li6.75La3Zr1.75Ta0.25O12 composite solid electrolyte was developed for ambient temperature and flexible solid-state lithium batteries.
References
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Journal ArticleDOI
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