【発明の名称】薄型電池の製造方法

Title:

【発明の名称】薄型電池の製造方法

Document Type and Number:

Japanese Patent JP2688502

Kind Code:

B2

Abstract:

PURPOSE:To increase voltage, discharge capacity, and charge-discharge cycle life by accommodating a positive electrode, a negative electrode, and an electrolyte in an outer jacket, and reducing the atmospheric pressure of a battery before sealing, then sealing the battery under reduced pressure. CONSTITUTION:A power generating element comprising a positive electrode 1, a negative electrode 3, and an electrolyte is accommodated in an outer jacket 6, then put in a vacuum unit, and pressure in the vacuum unit is reduced to a specified value. Degree of vacuum is 40-0.1mmHg, preferably 20-1mmHg. The outer jacket 6 is sealed within the vacuum unit under reduced pressure. Heat sealing using thermoplastic resin is most preferable in terms of adhesion, workability, and economical efficiency. Voltage, discharge capacity, and charge- discharge cycle life are increased.

Inventors:

Toshiyuki Kabata
Toshiyuki Osawa
Kimura Kouri
Ujiie Koji

Application Number:

JP22253088A

Publication Date:

December 10, 1997

Filing Date:

September 07, 1988

Export Citation:

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