Title:
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP3153922
Kind Code:
B2
Abstract:
PURPOSE: To prevent looseness of a wound electrode in the case of using a spiral type electrode by arranging a resin layer on an internal surface of a battery sheath can.
CONSTITUTION: A resin layer 20 is arranged on an internal surface of a battery sheath can 5, and after inserting a spiral type electrode 15 into the sheath can 5 of arranging this resin layer 20, an electrolyte is injected to assemble a nonaqueous electrolyte secondary battery. In this way, even when a clearance is provided between an external diameter of the electrode 15 and an internal diameter of the sheath can 5 at the time of inserting the electrode 15, the resin layer 20 is expanded by injecting the electrolyte thus to uniformly apply a pressure continuously in the center axial direction from the peripheral side relating to the electrode 15. Accordingly, looseness of the electrode 15 is prevented, and a good cycle characteristic can be obtained.
Inventors:
Nagamine, Masayuki
Application Number:
JP35909091A
Publication Date:
April 09, 2001
Filing Date:
December 28, 1991
Export Citation:
Assignee:
SONY CORP
International Classes:
H01M2/02; C01B31/02; H01M4/133; H01M4/583; H01M10/05; H01M10/0587; (IPC1-7): H01M2/02; H01M4/58; H01M10/40
Attorney, Agent or Firm:
小池 晃 （外２名）