Title:
【発明の名称】電 池
Document Type and Number:
Japanese Patent JP2817341
Kind Code:
B2
Abstract:
PURPOSE:To enhance the performance of a cell in terms of its storage and long time service and equip it with good discharging characteristic in a wide range of discharging conditions by interposing a specific composite material with fine porosity between the air intake side of a gas dispersive electrode and the inner surface of the cell vessel. CONSTITUTION:A cell according to the present invention is provided with a gas dispersive electrode 1 using oxygen as active substance and a cell vessel 10 having an air intake hole 3 leading to the atmosphere, and a composite material 11 with fine porosity is interposed between the air intake side of the electrode 1 and the inner surface of the cell vessel 10. The composite material 11 shall be formed from a fine porous substance, which has pore diameters below 100Angstrom and whose pore wall surfaces are provided with salts in which a saturated aqueous solution in the sealed space at room temp. has a saturated vapor pressure of 40%RH or below, and a water repellent substance arranged on one side of the first named substance. Thereby an excellent performance in practical application is obtained in a wide range of loads from heavy to light, and fine anti-leak property as well as long-term storage characteristic are assured.
Inventors:
Hanafusa Akira
Noya Shigeto
Yoshiaki Yoshino
Nobuyuki Yanagihara
Noya Shigeto
Yoshiaki Yoshino
Nobuyuki Yanagihara
Application Number:
JP10132590A
Publication Date:
October 30, 1998
Filing Date:
April 17, 1990
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01M2/14; H01M2/16; H01M12/06; (IPC1-7): H01M2/16; H01M12/06
Domestic Patent References:
| JP260052A | ||||
| JP287458A | ||||
| JP287459A |
Attorney, Agent or Firm:
Tomoyuki Takimoto (1 person outside)