US4604336A
Expired / Lapsed
US
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Manganese dioxide and process for the production thereof
Assignee: Edgewell Personal Care Brands LLC
•
Filing: 1984-06-29
•
Granted: 1986-08-05
•
Expires: 2004-06-29
Abstract
Abstract A novel form of manganese dioxide is produced by heat treating lambda-manganese dioxide at a temperature of between about 250 DEG C. and about 400 DEG C. This manganese dioxide possesses an x-ray diffraction pattern indicating peaks at 3.11, 2.41, 2.11, 1.62, 1.56, 1.43 and 1.31 angstroms, and exhibits desirable electrochemical activity.
Inventors
- 👤 John C. Nardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:16
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/50; H01M4/502; C; C01; C01G; C01G45/00; C01G45/02; C01G45/024; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2002/74; C01P2006/00; C01P2006/12; C01P2006/40; H01M6/00; H01M6/04; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
101 words
A galvanic cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising manganese dioxide having an X-ray diffraction pattern indicating peaks and relative intensities of peaks as follows: ______________________________________
I/I.sub.O
d(Å)
× 100
______________________________________
3.11 ± 0.02
100
2.41 ± 0.02
80-90
2.11 ± 0.02
28-38
1.62 ± 0.02
65-75
1.56 ± 0.02
18-28
1.43 ± 0.02
20-30
1.31 ± 0.02
25-35
______________________________________ wherein d is the plane spacing corresponding to the particular peak, I is the peak height of the particular peak, and I O is the peak height of the highest peak.
Claim 2
Dependent Claim
101 words
A galvanic cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising manganese dioxide having an X-ray diffraction pattern indicating peaks and relative intensities of peaks as follows: ______________________________________
I/I.sub.O
d(Å)
× 100
______________________________________
3.11 ± 0.02
100
2.41 ± 0.02
80-90
2.11 ± 0.02
28-38
1.62 ± 0.02
65-75
1.56 ± 0.02
18-28
1.43 ± 0.02
20-30
1.31 ± 0.02
25-35
______________________________________ wherein d is the plane spacing corresponding to the particular peak, I is the peak height of the particular peak, and I O is the peak height of the highest peak.
Claim 3
Dependent Claim
16 words
The galvanic cell of claim 1 wherein said cathode further comprises a conductor and a binder.
Claim 4
Dependent Claim
26 words
The galvanic cell of claim 2 wherein said conductor is at least one member selected from the group consisting of graphite, carbon black, and metal powders.
Claim 5
Dependent Claim
28 words
The galvanic cell of claim 2 wherein said binder is at least one member selected from the group consisting of polytetrafluoroethylene and copolymers of ethylene and acrylic acid.
Claim 6
Dependent Claim
114 words
A galvanic cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising manganese dioxide having a surface area of less than about 15 m 2 /gram, and having an X-ray diffraction pattern indicating peaks and relative intensities of peaks as follows: ______________________________________
I/I.sub.O
d(Å)
× 100
______________________________________
3.11 ± 0.02
100
2.41 ± 0.02
80-90
2.11 ± 0.02
28-38
1.62 ± 0.02
65-75
1.56 ± 0.02
18-28
1.43 ± 0.02
20-30
1.31 ± 0.02
25-35
______________________________________ wherein d is the plane spacing corresponding to the particular peak, I is the peak height of the particular peak, and I O is the peak height of the highest peak.
Claim 7
Dependent Claim
114 words
A galvanic cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising manganese dioxide having a surface area of less than about 15 m 2 /gram, and having an X-ray diffraction pattern indicating peaks and relative intensities of peaks as follows: ______________________________________
I/I.sub.O
d(Å)
× 100
______________________________________
3.11 ± 0.02
100
2.41 ± 0.02
80-90
2.11 ± 0.02
28-38
1.62 ± 0.02
65-75
1.56 ± 0.02
18-28
1.43 ± 0.02
20-30
1.31 ± 0.02
25-35
______________________________________ wherein d is the plane spacing corresponding to the particular peak, I is the peak height of the particular peak, and I O is the peak height of the highest peak.
Claim 8
Dependent Claim
16 words
The galvanic cell of claim 5 wherein said cathode further comprises a conductor and a binder.
Claim 9
Dependent Claim
26 words
The galvanic cell of claim 6 wherein said conductor is at least one member selected from the group consisting of graphite, carbon black, and metal powders.
Claim 10
Dependent Claim
28 words
The galvanic cell of claim 6 wherein said binder is at least one member selected from the group consisting of polytetrafluoroethylene and copolymers of ethylene and acrylic acid.
Claim 11
Dependent Claim
122 words
A galvanic cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising manganese dioxide having a surface area of less than about 10 m 2 /gram and more than about 3 m 2 /gram, and having an X-ray diffraction pattern indicating peaks and relative intensities of peaks as follows: ______________________________________
I/I.sub.O
d(Å)
× 100
______________________________________
3.11 ± 0.02
100
2.41 ± 0.02
80-90
2.11 ± 0.02
28-38
1.62 ± 0.02
65-75
1.56 ± 0.02
18-28
1.43 ± 0.02
20-30
1.31 ± 0.02
25-35
______________________________________ wherein d is the plane spacing corresponding to the particular peak, I is the peak height of the particular peak, and I O is the peak height of the highest peak.
Claim 12
Dependent Claim
122 words
A galvanic cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising manganese dioxide having a surface area of less than about 10 m 2 /gram and more than about 3 m 2 /gram, and having an X-ray diffraction pattern indicating peaks and relative intensities of peaks as follows: ______________________________________
I/I.sub.O
d(Å)
× 100
______________________________________
3.11 ± 0.02
100
2.41 ± 0.02
80-90
2.11 ± 0.02
28-38
1.62 ± 0.02
65-75
1.56 ± 0.02
18-28
1.43 ± 0.02
20-30
1.31 ± 0.02
25-35
______________________________________ wherein d is the plane spacing corresponding to the particular peak, I is the peak height of the particular peak, and I O is the peak height of the highest peak.
Claim 13
Dependent Claim
16 words
The galvanic cell of claim 9 wherein said cathode further comprises a conductor and a binder.
Claim 14
Dependent Claim
26 words
The galvanic cell of claim 10 wherein said conductor is at least one member selected from the group consisting of graphite, carbon black, and metal powders.
Claim 15
Dependent Claim
28 words
The galvanic cell of claim 11 wherein said binder is at least one member selected from the group consisting of polytetrafluoroethylene and copolymers of ethylene and acrylic acid.
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