EP0127373A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cathode structure for a thin film battery, and a battery having such a cathode structure
Assignee: Hitachi Ltd
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Filing: 1984-05-15
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Granted: —
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Expires: 2004-05-15
Abstract
Abstract A cathode structure for a thin film battery is disclosed in which a titanium oxide layer2 is disposed on a substrate 1 and has a titanium disulfide thin film 3 disposed thereon. The titanium oxide, which may be one or more of TiO, TiO<sub>2</sub>, Ti<sub>2</sub>O<sub>3</sub> and Ti<sub>3</sub>O<sub>5</sub>, achieves good adherence of the TiS<sub>2</sub> to the substrate. The cathode structure exhibits an excellent performance when applied in a lithium battery, a sodium battery, etc,
Inventors
- 👤 Keiichi Kanehori
- 👤 Katsuki Miyauchi
- 👤 Yuhio Ito
- 👤 Fumiyoshi Kirino
- 👤 Tetsuichi Kudo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; H01M4/5815; H01M4/64; H01M4/66; H01M4/664; H01M6/00; H01M6/14; H01M6/18; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
46 words
A cathode structure for a thin film battery having a titanium disulfide thin film (3) as cathode active material disposed on a substrate (1), characterized in that a layer (2) of titanium oxide is provided between said substrate (1) and said titanium disulfide thin film (3).
Claim 2
Dependent Claim
46 words
A cathode structure for a thin film battery having a titanium disulfide thin film (3) as cathode active material disposed on a substrate (1), characterized in that a layer (2) of titanium oxide is provided between said substrate (1) and said titanium disulfide thin film (3).
Claim 3
Dependent Claim
38 words
A cathode structure as defined in Claim 1, wherein said titanium oxide is at least one of TiO, TiO 2 , Ti 2 O 3 and Ti 3 0 5 (including these compoun s when exhibiting oxygen vacancies).
Claim 4
Dependent Claim
31 words
A cathode structure as defined in Claim 1 or Claim 2, wherein the thickness of the layer (2) of titanium oxide is in the range 0.1 µm to 5.0 µm inclusive.
Claim 5
Independent Claim
58 words
A method of forming a cathode structure for a thin film battery comprising providing a substrate, forming a titanium oxide layer on said substrate, and forming a TiS 2 thin film on said titanium oxide layer by chemical vapor deposition employing TiCl 4 and H 2 S as source gases under a pressure of at most 30 kPa.
Claim 6
Independent Claim
58 words
A method of forming a cathode structure for a thin film battery comprising providing a substrate, forming a titanium oxide layer on said substrate, and forming a TiS 2 thin film on said titanium oxide layer by chemical vapor deposition employing TiCl 4 and H 2 S as source gases under a pressure of at most 30 kPa.
Claim 7
Dependent Claim
17 words
A thin film battery having a cathode structure according to any one of Claims 1 to 3.
References Cited (Backward Citations)
No citation records indexed.
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