A powder particle size effect on ceramic powder based separator for lithium rechargeable battery

To improve the thermal stability of separators for lithium batteries, we have developed heat-resistant separator films based on ceramic powder. These ceramic powder based separators (CPS) consist of ceramic powder with binder resin. We used two different particle size powders of aluminum oxide (0.01...

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Bibliographic Details
Published in:Journal of power sources 2005-08, Vol.146 (1), p.779-783
Main Authors: Takemura, Daigo, Aihara, Shigeru, Hamano, Kouji, Kise, Makiko, Nishimura, Takashi, Urushibata, Hiroaki, Yoshiyasu, Hajimu
Format: Article
Language:English
Subjects:
Applied sciences
Ceramic powder
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Heat-resisting
Lithium rechargeable batteries
Separator
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Summary:To improve the thermal stability of separators for lithium batteries, we have developed heat-resistant separator films based on ceramic powder. These ceramic powder based separators (CPS) consist of ceramic powder with binder resin. We used two different particle size powders of aluminum oxide (0.01 or 0.3 μm). By mixing ceramic powder and resin at an appropriate content ratio, both types of CPS films satisfied needs for the heat-resistance. Furthermore, CPS film using 0.01 μm powder showed excellent charge–discharge cycling properties when applied to lithium rechargeable batteries as a separator.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2005.03.159