Chemistry: electrical current producing apparatus – product – and – Plural concentric or single coiled electrode
Patent
1986-09-29
1988-04-26
Weisstuch, Aaron
Chemistry: electrical current producing apparatus, product, and
Plural concentric or single coiled electrode
429194, 429197, 429254, H01M 478, H01M 216
Patent
active
047404337
ABSTRACT:
Lithium nonaqueous rechargeable batteries are described in which the separators in the cells have been exposed to a radiation grafting process to increase wettability. This increases charging and discharging rates without use of a wetting agent or addition of undesirable substances to the electrolyte system. In a preferred embodiment, a particularly advantageous electrolyte solvent system (propylene carbonate and ethylene carbonate) is used with excellent charge and discharge rates and excellent cycle life.
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"Preparation of Graft Copolymers with the Aid of Ionizing Radiations", High Polymers, vol. XV, pp. 596-691, Adolphe Chapiro (Interscience Publishers, New York, 1962.
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"Novel Hybrid Separators for Alkaline Zinc Batteries", Proceedings of the Symposium on Advances in Battery Materials and Processes, vol. 84-4, pp. 206-217, R. S. Yeo and J. Lee, published by The Electrochemical Society, Inc.
American Telephone and Telegraph Co., AT&T Bell Laboratories
Nilsen Walter G.
Weisstuch Aaron
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