US6706449B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithium anodes for electrochemical cells
Assignee: Sion Power Corp
•
Filing: 2001-12-18
•
Granted: 2004-03-16
•
Expires: 2021-12-18
Abstract
Abstract Provided are anodes for use in electrochemical cells, wherein the anode comprises an anode active layer comprising lithium and a polymer anode substrate comprising a polymer film layer and a protective crosslinked polymer layer, in which the protective crosslinked polymer layer is in contact with the anode active layer on the side opposite to the surface in contact with the polymer film layer. The present invention also pertains to methods for forming such anodes and electrochemical cells comprising such anodes.
Inventors
- 👤 Yuriy V. Mikhaylik
- 👤 Christopher J. Sheehan
- 👤 Terje A. Skotheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0402; H01M4/13; H01M4/139; H01M10/00; H01M10/05; H01M10/052; H01M10/0525; H01M4/0407; H01M4/134; H01M4/36; H01M4/38; H01M4/381; H01M4/382; H01M4/58; H01M4/581; H01M4/5815; H01M4/64; H01M4/66; H01M50/00; H01M50/40; H01M50/46; H01M2004/026; H01M2004/027; H01M4/40; H01M4/405; H01M4/48; H01M4/485; H01M4/661; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
69 words
An anode of an electrochemical cell, wherein said anode comprises: (a) an anode active layer comprising lithium; and (b) a polymer anode substrate wherein said polymer anode substrate comprises a polymer film layer and a protective crosslinked polymer layer; wherein said protective crosslinked polymer layer is in contact with said anode active layer comprising lithium on the side opposite to the surface in contact with said polymer film layer.
Claim 2
Dependent Claim
69 words
An anode of an electrochemical cell, wherein said anode comprises: (a) an anode active layer comprising lithium; and (b) a polymer anode substrate wherein said polymer anode substrate comprises a polymer film layer and a protective crosslinked polymer layer; wherein said protective crosslinked polymer layer is in contact with said anode active layer comprising lithium on the side opposite to the surface in contact with said polymer film layer.
Claim 3
Dependent Claim
30 words
The anode of claim 1 , wherein said polymer film layer is a polyester film selected from the group consisting of polyethylene terephthalate, polyethylene naphthalate, 1,4-cyclohexanedimethylene terephthalate, and polyethylene isophthalate.
Claim 4
Dependent Claim
40 words
The anode of claim 1 , wherein said protective crosslinked polymer layer is formed from the polymerization of one or more monomers comprising a monomer selected from the group consisting of alkyl acrylates, glycol acrylates, polyglycol acrylates, and polyol polyacrylates.
Claim 5
Dependent Claim
19 words
The anode of claim 1 , wherein said polymer film layer is from 2 to 25 microns in thickness.
Claim 6
Dependent Claim
19 words
The anode of claim 1 , wherein said polymer film layer is from 2 to 10 microns in thickness.
Claim 7
Dependent Claim
20 words
The anode of claim 1 , wherein said protective crosslinked polymer layer is from 0.01 to 4 microns in thickness.
Claim 8
Dependent Claim
20 words
The anode of claim 1 , wherein said protective crosslinked polymer layer is from 0.1 to 2 microns in thickness.
Claim 9
Dependent Claim
21 words
The anode of claim 1 , wherein said anode active layer comprising lithium is from 5 to 50 microns in thickness.
Claim 10
Dependent Claim
29 words
The anode of claim 1 , wherein said anode comprises a metal current collector layer interposed between said protective crosslinked polymer layer and said anode active layer comprising lithium.
Claim 11
Dependent Claim
24 words
The anode of claim 9 , wherein said metal current collector layer comprises a metal selected from the group consisting of copper and nickel.
Claim 12
Dependent Claim
34 words
The anode of claim 1 , wherein said anode comprises a single ion conducting protective layer in contact with said anode active layer comprising lithium on the side opposite from said polymer anode substrate.
Claim 13
Dependent Claim
90 words
An electrochemical cell comprising: (a) a cathode comprising a cathode active material; (b) an anode; and (c) a non-aqueous electrolyte interposed between said anode and said cathode, wherein said anode comprises: (i) an anode active layer comprising lithium; and (ii) a polymer anode substrate, wherein said polymer anode substrate comprises a polymer film layer and a protective crosslinked polymer layer wherein the protective crosslinked polymer layer is in contact with said anode active layer comprising lithium on the side opposite to the surface in contact with said polymer film layer.
Claim 14
Dependent Claim
90 words
An electrochemical cell comprising: (a) a cathode comprising a cathode active material; (b) an anode; and (c) a non-aqueous electrolyte interposed between said anode and said cathode, wherein said anode comprises: (i) an anode active layer comprising lithium; and (ii) a polymer anode substrate, wherein said polymer anode substrate comprises a polymer film layer and a protective crosslinked polymer layer wherein the protective crosslinked polymer layer is in contact with said anode active layer comprising lithium on the side opposite to the surface in contact with said polymer film layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2007-03-16 | 2007-09-15 | 2008-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-16 | 2011-09-15 | 2012-03-16 | $3760.00 | Window Closed / Lapsed |
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