Title:
【発明の名称】組電池およびその充電方法
Document Type and Number:
Japanese Patent JP3109603
Kind Code:
B2
Abstract:
PURPOSE:To accurately detect the last stage of charge of a cell whose deterioration is serious even if unevenness of capacity among cells occurs and to reduce lowering of characteristics of charge-discharge cycle by mounting thermistors on a cell. CONSTITUTION:Three thermistors 3 are used. Any of them is mounted between two adjacent cells 2, and those three thermistors 3 are connected in series by lead wires 4. The wires 4 at both ends of the wires 4 to connect the thermistors in series are each connected to temperature measuring terminals 7 and 8. Even if deterioration due to repeated charging and discharging (the so-called cycle deterioration) is caused with the result that unevenness of capacity between the cells 2 occurs it is thereby possible to accurately detect the last stage of charge of the cell 2 whose deterioration is serious by detecting the surface temperature of the cell 2 by the thermistor 3. It is therefore possible to prevent overcharge and lowering of charge-discharge cycle characteristics of battery as the whole.
Inventors:
Masanobu Kizu
Ryu Nagai
Ryu Nagai
Application Number:
JP8140091A
Publication Date:
November 20, 2000
Filing Date:
March 20, 1991
Export Citation:
Assignee:
Hitachi Maxell, Ltd.
International Classes:
H01M10/44; H01M2/10; H01M10/30; H01M10/48; H02J7/04; H02J7/10; (IPC1-7): H01M10/48; H01M10/44
Domestic Patent References:
| JP4267078A | ||||
| JP5479934U | ||||
| JP246362U |
Attorney, Agent or Firm:
Tetsuo Miwa