Method of manufacturing electrode group unit for lithium ion capacitor and lithium ion capacitor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 13, 2015
Grant Date -
Jun 27, 2013
app pub date -
Sep 15, 2011
filing date -
Sep 16, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of manufacturing an electrode group unit for lithium ion capacitor that allows reliable welding between a current collecting member and an electrode and that provides a welded portion with a low resistance is provided. A lithium ion capacitor is also provided. An unapplied portion 25 of a positive electrode 9 and an unapplied portion 33 of a negative electrode 11 are disposed to project outside of separators 13, 15 in directions opposite to each other. The resulting assembly is wound into a swirling shape in cross section about an axial core 7 to form an electrode group 5. A lithium metal support member 17 is disposed on the negative electrode 11 such that a layer in which the lithium metal support member 17 is wound is located in a radially middle region of the electrode group 5. A negative current collecting member 45 is placed on the unapplied portion 33, and welding is performed using a direct-collecting semiconductor laser device that continuously generates laser light to manufacture an electrode group unit 2 for lithium ion capacitor. The electrode group unit 2 for lithium ion capacitor is housed in a container 3 to obtain a lithium ion capacitor 1.
First Claim
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International Classification(s)
- 2011 Application Filing Year
- H01G Class
- 630 Applications Filed
- 499 Patents Issued To-Date
- 79.21 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H01G Class
- 0 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 13, 2027 |
