Title:
【発明の名称】非水電解質リチウム電池
Document Type and Number:
Japanese Patent JP2762881
Kind Code:
B2
Abstract:
PURPOSE:To heighten electrode filling density, and improve battery energy density by adding a binding agent to mixture formed by mixing meso phase globule carbon powder in graphite powder, and forming a negative electrode plate after it is applied to an electrode base body. CONSTITUTION:Polyvinyliden fluoride solution is added to mixture formed by mixing meso phase globule carbon powder in graphite powder, and it is agitated, and N-methyl pyrolidon is added to adjust viscosity, and it is agitated, and negative electrode paste is formed. After this negative electrode paste is applied to an electrode base body composed of an iron punched plate to which nickel metal plating is applied, and it is dried, and a negative electrode plate is formed. As for the paste formed by mixing a binding agent in the graphite powder, the viscosity is low, and when the meso phase globule carbon powder is mixed in this, the paste viscosity is improved, and thick painting of the negative electrode plate becomes possible. As for the meso phase golbule carbon powder, a lithium storing and releasing quantity is large, so that electrode filling density is improved. Thereby, battery energy density is heightened, and reliability is improved.
Inventors:
TSUKAMOTO HISASHI
Application Number:
JP33658192A
Publication Date:
June 04, 1998
Filing Date:
November 24, 1992
Export Citation:
Assignee:
NIPPON DENCHI KK
International Classes:
C01B31/02; C01B31/04; H01M4/133; H01M4/1393; H01M4/583; H01M10/05; H01M10/052; (IPC1-7): H01M4/02; H01M4/58; H01M10/40
Domestic Patent References:
| JP5290833A |