EP0251677A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Graphite intercalation compound electrodes for rechargeable batteries and a method for the manufacture of the same
Assignee: Sharp Corp
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Filing: 1987-06-24
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Granted: —
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Expires: 2007-06-24
Abstract
Abstract A method for the manufacture of a pyrolytic graphite with high crystallinity comprises the deposition of graphite directly onto a catalytic substrate by thermal decomposition of a carbon-containing material at low temperatures. Also disclosed is an electrode comprising graphite as an active material and an electrode substrate as a current collector unified, said graphite being pyrolytic graphite that is deposited on a metal electrode substrate with catalytic properties so as to cover said metal electrode substrate by the said method. Further disclosed is a battery comprising a pair of positive and negative electrodes, at least one of which is made of graphite as its electrode active material.
Inventors
- 👤 Hiroshi Wada
- 👤 Masaru Yoshida
- 👤 Shigeo Nakajima
- 👤 Yoshimitsu Tajima
- 👤 Nobuhiro Kanagisawa
- 👤 Motoo Mohri
- 👤 Michiyo Kasahara
- 👤 Hideaki Tanaka
- 👤 Yoshikazu Yoshimoto
- 👤 Tomonari Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 18:37
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/13; H01M4/133; B; B82; B82Y; B82Y30/00; C; C01; C01B; C01B32/00; C01B32/20; C01B32/205; C01B32/21; C01B32/22; C23; C23C; C23C16/00; C23C16/22; C23C16/26; D; D01; D01F; D01F9/00; D01F9/08; D01F9/12; D01F9/127; D01F9/1271; D01F9/1272; D01F9/1273; D01F9/1275; D01F9/1276; D01F9/133; H01M10/00; H01M10/05; H01M10/052; H01M10/0525; H01M4/36; H01M4/58; H01M4/583; H01M4/86; H01M4/96; C01P; C01P2002/00; C01P2002/70; C01P2002/78; H01M4/587; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
31 words
A method of manufacturing a pyrolytic graphite with high crystallinity, comprising the deposition of graphite directly onto a catalytic substrate by thermal decomposition of a carbon-containing material at relatively low temperatures.
Claim 2
Independent Claim
31 words
A method of manufacturing a pyrolytic graphite with high crystallinity, comprising the deposition of graphite directly onto a catalytic substrate by thermal decomposition of a carbon-containing material at relatively low temperatures.
Claim 3
Dependent Claim
22 words
A method as claimed in claim 1, wherein the starting material for said graphaite is an aromatic compound or an unsaturated compound.
Claim 4
Dependent Claim
23 words
A method as claimed in claim 1 or claim 2, wherein said substrate is iron, cobalt, nickel, or an alloy of these metals.
Claim 5
Dependent Claim
53 words
An electrode with graphite as an active material and an electrode substrate as a current collector unified, said graphite being pyrolytic graphite that is deposited on a metal electrode substrate with catalytic properties by the method as claimed in any of claims 1 to 3 so as to cover said metal electrode substrate.
Claim 6
Dependent Claim
22 words
An electrode as claimed in claim 4, wherein said metal electrode substrate is iron, cobalt, nickel, or an alloy of these metals.
Claim 7
Dependent Claim
29 words
An electrode as claimed in claim 4 or claim 5, wherein said pyrolytic graphite is doped with an alkali metal, alkaline earth metal, rare earth metal, or transition metal.
Claim 8
Dependent Claim
25 words
An electrode as claimed in any of claims 4 to 6, wherein said pyrolytic graphite is doped with a halogen, halogen compound, or oxygen acid.
Claim 9
Dependent Claim
38 words
A battery comprising a pair of positive and negative electrodes, at least one of which is made of graphite as its electrode active material, said electrode being the electrode as claimed in any of claims 4 to 7.
Claim 10
Dependent Claim
22 words
A battery as claimed in claim 8, wherein said metal electrode substrate is iron, cobalt, nickel, or an alloy of these metals.
References Cited (Backward Citations)
No citation records indexed.
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