Lithium ion secondary battery having shape memory safety vent
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SAMSUNG SDI CO LTD
- Publication Date
- 2006-03-15
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
[0001] Cross References to Related Applications
[0002] This application claims priority and benefits from Korean Patent Application No. 10-2004-0071415 filed with the Korean Intellectual Property Office on September 7, 2004, the entire contents of which are hereby incorporated by reference. technical field
[0003] The present invention relates to lithium ion secondary batteries, and more particularly, to lithium ion secondary batteries having a shape memory safety vent adapted to release compressed gas inside. Background technique
[0004] A typical lithium-ion secondary battery includes: an electrode assembly consisting of a positive plate to which a positive active material is attached, a negative plate to which a negative active material is attached, and a battery between the positive and negative plates to avoid short circuits and allow only lithium ions to move. a separator wound into a known "jelly roll" structure; an electrolyte for moving lithium ions; a tank for ...