US4603094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline storage battery
Assignee: Japan Storage Battery Co Ltd
•
Filing: 1984-07-05
•
Granted: 1986-07-29
•
Expires: 2004-07-05
Abstract
Abstract An alkaline storage battery is described including a positive electrode comprising as an active material a cobalt hydroxide base containing from about 15 to 65 wt % nickel hydroxide and a negative electrode comprising zinc or cadmium as an active material; the alkaline storage battery can be charged rapidly, has a high energy density, and the residual capacity of the battery can be easily measured by detection of the electromotive force of the battery.
Inventors
- 👤 Hideo Yasuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:07
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/52; H01M10/00; H01M10/24; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
An alkaline storage battery including a positive electrode comprising as an active material a cobalt hydroxide base containing from about 15 to 65 wt % nickel hydroxide with cobalt hydroxide present in an amount of above 20 wt. % of the cobalt hydroxide and nickel hydroxide mixture.
Claim 2
Dependent Claim
47 words
An alkaline storage battery including a positive electrode comprising as an active material a cobalt hydroxide base containing from about 15 to 65 wt % nickel hydroxide with cobalt hydroxide present in an amount of above 20 wt. % of the cobalt hydroxide and nickel hydroxide mixture.
Claim 3
Dependent Claim
70 words
An alkaline storage battery including, as an active material of said positive electrode forming the battery, a product obtained by heat-treating a mixture or a mixed solution of cobalt nitrate and nickel nitrate having a nickel content of from about 15 to 65 wt %, based on the total amount of cobalt and nickel, at 110 to 300° C., and then dipping the resulting material into an aqueous alkaline solution.
Claim 4
Dependent Claim
70 words
An alkaline storage battery including, as an active material of said positive electrode forming the battery, a product obtained by heat-treating a mixture or a mixed solution of cobalt nitrate and nickel nitrate having a nickel content of from about 15 to 65 wt %, based on the total amount of cobalt and nickel, at 110 to 300° C., and then dipping the resulting material into an aqueous alkaline solution.
Claim 5
Dependent Claim
52 words
An alkaline storage battery as in claim 1, which includes said positive electrode formed by applying a mixed powder of an active material of a cobalt hydroxide base containing from about 15 to 65 wt % nickel hydroxide, an electroconductive material, and a binding agent to a substrate to prepare the electrode.
Claim 6
Dependent Claim
22 words
An alkaline storage battery as in claim 1 including a negative electrode, wherein zinc is an active material of the negative electrode.
Claim 7
Dependent Claim
22 words
An alkaline storage battery as in claim 1 including a negative electrode, wherein cadmium is an active material of the negative electrode.
Claim 8
Dependent Claim
36 words
An alkaline storage battery as in claim 1, wherein an electric charge or discharge amount is controlled by turning off the current switch by means of voltage detector sensing its charge or discharge voltage a, respectively.
Claim 9
Dependent Claim
28 words
An alkaline storage battery as in claim 1 provided with a residual capacity meter which displays the residual capacity by detection of the electromotive force of the battery.
Claim 10
Dependent Claim
14 words
An alkaline storage battery as in claim 3, wherein the electroconductive material is graphite.
References Cited (Backward Citations)
US2988590A
Cited
US3203879A
Cited
US3230113A
Cited
US3081366A
Cited
US3211587A
Cited
US3762959A
Cited
US3977908A
Cited
US3951686A
Cited
US4029132A
Cited
US4130696A
Cited
US4289836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |