Journal
JOURNAL OF POWER SOURCES
Volume 146, Issue 1-2, Pages 779-783Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2005.03.159
Keywords
ceramic powder; separator; heat-resisting; lithium rechargeable batteries
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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 mu m). 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 mu m powder showed excellent charge-discharge cycling properties when applied to lithium rechargeable batteries as a separator. (c) 2005 Elsevier B.V. All rights reserved.
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