Title:
HYBRID STORAGE CELL, VEHICLE AND POWER STORAGE UNIT EMPLOYING SAME, SMART GRID VEHICLE SYSTEM EMPLOYING VEHICLE, AND POWER SUPPLY NETWORK SYSTEM EMPLOYING POWER STORAGE UNIT
Document Type and Number:
WIPO Patent Application WO/2013/054795
Kind Code:
A1
Abstract:
Provided is a hybrid storage cell that can prevent overcharge, despite lacking an expensive protection switch or other device adapted to deal with high current or high voltage, in order to proactively prevent rupture or ignition of lithium ion storage cells or other organic solution storage cells in the event of unforeseen overcharging. The cell comprises a plurality of series-connected virtual cells (32) of parallel-connected organic solution storage cells (24A) and aqueous solution storage cells (26A), the organic solution storage cells and the aqueous solution storage cells having closely approximating average discharge voltages. The overcharge threshold voltage of the organic solution storage cells is designed to be higher than the final discharge voltage of the aqueous solution storage cells, and the final discharge voltage of the organic solution storage cells to be lower than the final discharge voltage of the aqueous solution storage cells. In the event that the organic solution storage cells of a virtual cell are exposed to overcharge energy that could lead to overcharge, the energy is absorbed by a hydrogen-generating reaction of the aqueous solution storage cells, holding the discharge voltage of the virtual cell to the final discharge voltage of the aqueous solution storage cells, and preventing the organic solution storage cells from reaching the overcharge threshold voltage.
Inventors:
KACHI NAOYOSHI (JP)
Application Number:
PCT/JP2012/076149
Publication Date:
April 18, 2013
Filing Date:
October 09, 2012
Export Citation:
Assignee:
KACHI NAOYOSHI (JP)
International Classes:
H01M16/00; B60L3/00; B60L7/24; B60L11/18; H01M4/58; H01M10/44; H01M10/48; H02J3/32; H02J7/00; H02J7/02; H02J7/34
Foreign References:
| JP2003164068A | 2003-06-06 | |||
| JP2010097388A | 2010-04-30 | |||
| JP2009219310A | 2009-09-24 |
Other References:
See also references of EP 2768071A4
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)
Mochitoshi Watanabe (JP)
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Claims: