Energy storage device having a current collector with inherent current limitations
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United States of America Patent
Stats
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Mar 23, 2021
Grant Date -
Mar 14, 2019
app pub date -
Mar 20, 2018
filing date -
Sep 9, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Improvements in the structural components and physical characteristics of lithium battery articles are provided. Standard lithium ion batteries, for example, are prone to certain phenomena related to short circuiting and have experienced high temperature occurrences and ultimate firing as a result. Structural concerns with battery components have been found to contribute to such problems. Improvements provided herein include the utilization of thin metallized current collectors (aluminum and/or copper, as examples), high shrinkage rate materials, materials that become nonconductive upon exposure to high temperatures, and combinations thereof. Such improvements accord the ability to withstand certain imperfections (dendrites, unexpected electrical surges, etc.) within the target lithium battery through provision of ostensibly an internal fuse within the subject lithium batteries themselves that prevents undesirable high temperature results from short circuits. Battery articles and methods of use thereof including such improvements are also encompassed within this disclosure.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- H01M Class
- 70.64 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 23, 2028 |
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