Patent US5824434A successfully refreshed from Google Patents.
US5824434A
Expired / Lapsed
US
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Secondary battery
Assignee: Canon Inc
•
Filing: 1993-11-30
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Granted: 1998-10-20
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Expires: 2013-11-30
Abstract
Abstract A secondary battery exhibiting a long cycle life and comprising a negative pole activating material made of lithium or zinc is provided, the battery at least having a negative pole made of lithium or zinc serving as the negative pole activating material, an electrolyte (electrolytic solution), a separator, a positive pole made of a positive pole activating material, a collecting electrode and a battery case, wherein at least the surface of the negative pole is covered with a film having a structure which allows ions relating to the battery reactions to pass through. Since growth of dendrite of lithium or zinc at the time of the charge can be prevented, short circuit between the negative pole and the positive pole can be prevented. Therefore, the charge/discharge cycle life can significantly be lengthened. As a result, a lithium secondary battery, a nickel-zinc secondary battery, an air-zinc secondary battery, a bromine-zinc secondary battery and a silver oxide-zinc secondary battery of the long cycle life can be manufactured.
Inventors
- 👤 Soichiro Kawakami
- 👤 Shinya Mishina
- 👤 Naoya Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:10
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; H01M10/24; H01M4/00; H01M4/02; H01M4/04; H01M4/0402; H01M4/0404; H01M4/0409; H01M4/0414; H01M4/0416; H01M4/0419; H01M4/0421; H01M4/0423; H01M4/0426; H01M4/0428; H01M4/043; H01M4/0435; H01M4/0438; H01M4/045; H01M4/0452; H01M4/0464; H01M4/0466; H01M4/0471; H01M4/13; H01M4/131; H01M4/134; H01M4/139; H01M4/24; H01M4/244; H01M4/36; H01M4/362; H01M4/366; H01M4/38; H01M4/40; H01M4/48; H01M4/58; H01M4/582; H01M4/62; H01M4/621; H01M4/622; H01M4/623; H01M4/64; H01M4/70; H01M4/72; H01M4/74; H01M4/742; H01M10/056; H01M10/058; H01M10/0585; H01M10/0587; H01M10/30; H01M12/00; H01M12/08; H01M2004/026; H01M2004/027; H01M4/133; H01M4/1391; H01M4/42; H01M4/485; H01M4/50; H01M4/505; H01M4/52; H01M4/525; H01M4/581; H01M4/624; H01M4/625; H01M4/80; H01M4/808; H01M50/00; H01M50/40; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
103 words
A secondary battery having a negative electrode made of a negative electrode active material and a positive electrode made of a positive electrode active material and arranged in such a manner that said negative electrode active material and said positive electrode active material are separated from each other by a separator, said secondary battery comprising: a multi-layered metal oxide film disposed between said positive electrode and said negative electrode and having small apertures to pass therethrough ions generated during operation of said secondary battery and to inhibit growth of dendrites grown from said negative electrode or said positive electrode during said battery operation.
Claim 2
Dependent Claim
103 words
A secondary battery having a negative electrode made of a negative electrode active material and a positive electrode made of a positive electrode active material and arranged in such a manner that said negative electrode active material and said positive electrode active material are separated from each other by a separator, said secondary battery comprising: a multi-layered metal oxide film disposed between said positive electrode and said negative electrode and having small apertures to pass therethrough ions generated during operation of said secondary battery and to inhibit growth of dendrites grown from said negative electrode or said positive electrode during said battery operation.
Claim 3
Dependent Claim
45 words
A secondary battery according to claim 1, wherein said multi-layered metal oxide film contains at least one material selected from the group consisting of alumina, titanium oxide, silica, selenium oxide, zirconia oxide, magnesium oxide, chrome oxide, calcium oxide, tin oxide, indium oxide and germanium oxide.
Claim 4
Dependent Claim
31 words
A secondary battery according to claim 1, wherein said multi-layered metal oxide film is formed employing a bimolecular film as a template to orient the metal oxide as a multi-layered film.
Claim 5
Dependent Claim
27 words
A secondary battery according to claim 3, wherein said bimolecular film is a compound of an amphipathic material having both a hydrophobic group and a hydrophilic group.
Claim 6
Dependent Claim
25 words
A secondary battery according to claim 3, wherein said bimolecular film is formed in a film shape combining an amphipathic material and a polymer compound.
Claim 7
Dependent Claim
24 words
A secondary battery according to claim 3, wherein said bimolecular film is a polyion reactant of an ionic amphipathic material and a polymer electrolyte.
Claim 8
Dependent Claim
20 words
A secondary battery according to claim 1, wherein said multi-layered metal oxide film is a composite of an organic polymer.
Claim 9
Dependent Claim
22 words
A secondary battery according to claim 1, wherein said separator comprises said multi-layered metal oxide film and at least one polymer sheet.
Claim 10
Dependent Claim
44 words
A secondary battery according to claim 1, wherein the surface of said positive pole made of said positive pole activating material and opposing said negative pole is covered with at least a film through which ions relating to battery reactions are able to pass.
Claim 11
Dependent Claim
44 words
A secondary battery according to claim 1, wherein the surface of said negative pole made of said negative pole activating material and opposing said positive pole is covered with at least a film through which ions relating to battery reactions are able to pass.
Claim 12
Dependent Claim
46 words
A secondary battery according to claim 9, wherein said film through which the ions relating to the battery reactions are able to pass is a multilayered metal oxide film prepared employing a bimolecular film as a template to orient the metal oxide in a multi-layer structure.
Claim 13
Dependent Claim
18 words
A secondary battery according to claim 1, wherein said negative pole activating material is lithium or lithium alloy.
Claim 14
Dependent Claim
18 words
A secondary battery according to claim 1, wherein said negative pole activating material is zinc or zinc alloy.
Claim 15
Dependent Claim
18 words
A secondary battery according to claim 1, wherein said multi-layered metal oxide film is subjected to lipophilic treatment.
Claim 16
Dependent Claim
26 words
A secondary battery according to claim 1, wherein said multi-layered metal oxide film has a conductor member on the surface thereof which opposes said negative electrode.
Claim 17
Dependent Claim
15 words
A secondary battery according to claim 1, wherein said negative electrode active material contains lithium.
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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) | 2001-10-19 | 2002-04-20 | 2002-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-19 | 2006-04-20 | 2006-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-19 | 2010-04-20 | 2010-10-20 | $7700.00 | Window Closed / Lapsed |