EP0370684A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Non-aqueous electrolyte secondary batter and method of producing the same
Assignee: Panasonic Holdings Corp
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Filing: 1989-11-15
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Granted: —
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Expires: 2009-11-15
Abstract
Abstract A non-aqueous electrolyte secondary battery which comprises a composite oxide consisting of manganese and lithium as an active material of a positive electrode (6) wherein crystal having tetragonal sublattice, of which lattice constants of a and c axes are respectively within 4.8 to 5.1 Å and 2.83 to 2.87 Å, is contained. In the aforementioned non-aqueous electrolyte secondary battery, cycle-capacity characteristic is stable.
Inventors
- 👤 Nobuo Eda
- 👤 Akiyoshi Morita
- 👤 Akira Ota
- 👤 Takashi Hino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 16:13
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; H01M4/00; H01M4/02; H01M4/13; H01M4/131; H01M4/139; H01M4/1391; H01M4/36; H01M4/48; H01M4/485; H01M4/50; H01M4/505; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
A non-aqueous electrolyte secondary battery comprising: a negative electrode using a light metal as an active material: a non-aqueous electrolyte: and a positive electrode comprised of a composite oxide consisting of mangnese and lithium: said composite oxide of positive electrode containing crystals having tetragonal sublattice of which lattice constants of a and c axes are within 4.8 to 5.1 Å and 2.83 to 2.87 Å, respectively.
Claim 2
Dependent Claim
66 words
A non-aqueous electrolyte secondary battery comprising: a negative electrode using a light metal as an active material: a non-aqueous electrolyte: and a positive electrode comprised of a composite oxide consisting of mangnese and lithium: said composite oxide of positive electrode containing crystals having tetragonal sublattice of which lattice constants of a and c axes are within 4.8 to 5.1 Å and 2.83 to 2.87 Å, respectively.
Claim 3
Independent Claim
85 words
A method of producing a non-aqueous electrolyte secondary battery by utilizing a negative electrode using a light metal as an active material, a non-aqueous electrolyte and a positive electrode comprising a composite oxide which consists of manganese and lithium wherein crystal having tetragonal sublattice, of which lattice constants of a and c axes are respectively within 4.8 to 5.1 Å and 2.83 to 2.87 Å, is contained, said composite oxide being obtained by electrochemical reduction of managnese dioxide in the non-aqueous electrolyte containing lithium salt.
Claim 4
Independent Claim
85 words
A method of producing a non-aqueous electrolyte secondary battery by utilizing a negative electrode using a light metal as an active material, a non-aqueous electrolyte and a positive electrode comprising a composite oxide which consists of manganese and lithium wherein crystal having tetragonal sublattice, of which lattice constants of a and c axes are respectively within 4.8 to 5.1 Å and 2.83 to 2.87 Å, is contained, said composite oxide being obtained by electrochemical reduction of managnese dioxide in the non-aqueous electrolyte containing lithium salt.
Claim 5
Dependent Claim
15 words
A method according to Claim 2, wherein said manganese dioxide is obtained by the electrolysis.
Claim 6
Dependent Claim
16 words
A method according to Claim 2, wherein said manganese dioxide is obtained by the chemical synthesis.
Claim 7
Independent Claim
85 words
A method of producing a non-aqueous electrolyte secondary battery by utilizing a negative electrode using a light metal as an active material, a non-aqueous electrolyte and a positive electrode comprising a composite oxide which consists of manganese and lithium wherein crystal having tetragonal sublattice, of which lattice constants of a and c axes are respectively within 4.8 to 5.1 Å and 2.83 to 2.87 Å, is contained, said composite oxide being obtained by burning the mixture of manganese dioxide and lithium compound in the air.
Claim 8
Independent Claim
85 words
A method of producing a non-aqueous electrolyte secondary battery by utilizing a negative electrode using a light metal as an active material, a non-aqueous electrolyte and a positive electrode comprising a composite oxide which consists of manganese and lithium wherein crystal having tetragonal sublattice, of which lattice constants of a and c axes are respectively within 4.8 to 5.1 Å and 2.83 to 2.87 Å, is contained, said composite oxide being obtained by burning the mixture of manganese dioxide and lithium compound in the air.
Claim 9
Dependent Claim
13 words
A method according to Claim 5, wherein said lithium compound is lithium nitrate.
Claim 10
Dependent Claim
13 words
A method according to Claim 5, wherein said lithium compound is lithium hydroxide.
References Cited (Backward Citations)
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