Title:
STORAGE TYPE TEMPERATURE DIFFERENCE BATTERY
Document Type and Number:
Japanese Patent JP2703685
Kind Code:
B2
Abstract:
PURPOSE: To enable a concentration difference battery to function as such after temperature difference is eliminated by forming the concentration difference battery by means of accumulation of pairs of redoxes on high-temperature and low-temperature electrodes.
CONSTITUTION: Platinum electrodes 1, 3 are provided inside a glass tube having a diaphragm 4 of a glass filter or ion exchange resin at its center portion and the glass tube is filled with an aqueous solution of pottasium ferrocyanide and pottasium ferricyanide serving as a redox reaction medium 2. In order to hold the electrodes 1, 3 at 10°C and 70°C respectively, a low-temperature medium 5 and a high-temperature medium 6 are used for temperature control. Then the pair of ferrocyane and ferricyane redoxes show negative thermo- electromotive power and the electrode 1 becomes positive and the electrode 3 negative. When a current passes therethrough, ferrocyane ions are accumulated on the side of the electrode 1 and ferricyane ions on the side of the electrode 3. Thereafter, the electrodes 1, 3 are held at the same temperature and then the electrode 3 becomes positive and the electrode 1 negative and the battery functions as a concentration difference battery.
Inventors:
Maki Ishizawa
Ogata Tsutomu
Mitsunori Koyama
Kazuhiko Shindo
Ogata Tsutomu
Mitsunori Koyama
Kazuhiko Shindo
Application Number:
JP33075491A
Publication Date:
January 26, 1998
Filing Date:
December 13, 1991
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H01M10/36; H01M8/18; H01M14/00; H01M16/00; (IPC1-7): H01M14/00; H01M10/36
Domestic Patent References:
| JPH0494067A |
Attorney, Agent or Firm:
Wakabayashi Tadashi