US4336315A
Expired / Lapsed
US
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Organic electrolyte cell with manganese dioxide cathode and a light metal anode
Assignee: Panasonic Holdings Corp
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Filing: 1981-01-21
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Granted: 1982-06-22
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Expires: 2001-01-21
Abstract
Abstract A cell composed of an anode with a light metal as an active material, a cathode with manganese dioxide as an active material, and an organic electrolyte. The cathode contains an alkaline earth metal oxide. The cell is superior in storage with the swelling of the cell and the increase of the cell impedance is little during the preservation.
Inventors
- 👤 Nobuo Eda
- 👤 Takashi Iijima
- 👤 Yoshinori Toyoguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:53
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/50; H01M4/502; H01M6/00; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
37 words
A cell composed of an anode with a light metal as an active material, an organic electrolyte comprising ester, and a cathode with manganese dioxide as an active material, said cathode containing an alkaline earth metal oxide.
Claim 2
Dependent Claim
37 words
A cell composed of an anode with a light metal as an active material, an organic electrolyte comprising ester, and a cathode with manganese dioxide as an active material, said cathode containing an alkaline earth metal oxide.
Claim 3
Dependent Claim
29 words
A cell in accordance with claim 1, wherein the alkaline earth metal oxide is selected from a group composed of magnesium oxide, calcium oxide, strontium oxide and barium oxide.
Claim 4
Dependent Claim
27 words
A cell in accordance with claim 2, wherein the addition amount of the magnesium oxide is 1 through 5 mol % with respect to dehydrated manganese dioxide.
Claim 5
Dependent Claim
28 words
A cell in accordance with claim 2, wherein the addition amount of the calcium oxide is 1 through 3 mol % with respect to the dehydrated manganese dioxide.
Claim 6
Dependent Claim
28 words
A cell in accordance with claim 2, wherein the addition amount of the strontium oxide is 1 through 3 mol % with respect to the dehydrated manganese dioxide.
Claim 7
Dependent Claim
27 words
A cell in accordance with claim 2, wherein the addition of the barium oxide is 0.5 through 3 mol % with respect to the dehydrated manganese dioxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |