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EP0267791A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A secondary battery using nonaqueous electrolytes

Assignee: Sharp Corp
•
Filing: 1987-11-11
•
Granted: —
•
Expires: 2007-11-11
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Abstract

Abstract A secondary battery (A-D) using nonaqueous electrolytes that contain a light metal as an active material, and comprising an anode (11), a cathode (12) and a separator (13) that electrically separates the anode (11) from the cathode (12), wherein said anode (11) comprises a heat-­resistant porous support and a carbon active material deposited on said porous support, said carbon active material having the following physico-chemical properties: The mean interlayer separation of said carbon active material is in the range of 0.337 to 0.355 nm; the ratio of the Raman intensity of 1360 cm⁻¹ to that of 1580 cm⁻¹ with regard to the argon laser Raman spectra of said carbon active material is in the range of 0.4 to 1.0; and said carbon active material is mainly composed of a carbon having a six-membered ring structure with flat networks and having a selective orientation.

Inventors

  • 👤 Yoshimitsu Tajima
  • 👤 Motoo Mohri
  • 👤 Hideaki Tanaka

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 12:56
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/583; H01M4/587; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 143 words
A secondary battery (A-D) using nonaqueous electrolytes that contain a light metal as an active material, and comprising an anode (11), a cathode (12) and a separator (13) that electrically separates the anode (11) from the cathode (12), wherein said anode (11) comprises a heat-resistant porous substrate and a carbon active material deposited on said porous substrate, said carbon active material having the following physico-chemical properties: The mean interlayer separation of said carbon active material is in the range of 0.337 to 0.355 nm; the ratio of the Raman intensity of 1360 cm⁻¹ to that of 1580 cm⁻¹ with regard to the argon laser Raman spectra of said carbon active material is in the range of 0.4 to 1.0; and said carbon active material is mainly composed of a carbon having a six-membered ring structure with flat networks and having a selective orientation.
Claim 2
Dependent Claim 143 words
A secondary battery (A-D) using nonaqueous electrolytes that contain a light metal as an active material, and comprising an anode (11), a cathode (12) and a separator (13) that electrically separates the anode (11) from the cathode (12), wherein said anode (11) comprises a heat-resistant porous substrate and a carbon active material deposited on said porous substrate, said carbon active material having the following physico-chemical properties: The mean interlayer separation of said carbon active material is in the range of 0.337 to 0.355 nm; the ratio of the Raman intensity of 1360 cm⁻¹ to that of 1580 cm⁻¹ with regard to the argon laser Raman spectra of said carbon active material is in the range of 0.4 to 1.0; and said carbon active material is mainly composed of a carbon having a six-membered ring structure with flat networks and having a selective orientation.
Claim 3
Dependent Claim 29 words
A secondary battery according to claim 1, wherein said carbon active material is deposited on the whole area of the porous substrate so as to form the anode (11).
Claim 4
Dependent Claim 49 words
A secondary battery according to claim 1, wherein said carbon active material is deposited on one side of the porous substrate so as to form the anode (11) and the portion of said porous substrate on which the carbon active material is not deposited functions as the separator (13).

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