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Patent Searching and Data


Title:
COMPOSITE BATTERY, AND AUTOMOBILE AND RAILWAY REGENERATIVE-POWER STORAGE DEVICE EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2019/092794
Kind Code:
A1
Abstract:
The present invention provides a composite battery capable of preventing excessive input and output loads on a lithium-ion secondary battery even with a high rate of repeated charging and discharging, and capable of simply controlling the input to and the output from each secondary battery. A composite battery 10 is constituted by a lead storage battery 12 and a lithium-ion secondary battery 14 connected in parallel. The lead storage battery 12 has a first internal resistance ratio which is calculated by dividing an internal resistance value that changes with temperature by an internal resistance value at a reference temperature arbitrarily set within the temperature range from 0°C to 40°C, and the lithium-ion secondary battery 14 has a second internal resistance ratio which is calculated by dividing an internal resistance value that changes with temperature by an internal resistance value at the reference temperature. The second internal resistance ratio is set to a value greater than the first internal resistance ratio within a temperature range that is higher than the reference temperature.

Inventors:
TSUKAMOTO Hisashi (Keihanna Open Innovation Center 7-5-1 Seikadai, Seika-cho, Soraku-gu, Kyoto 94, 〒6190294, JP)
KACHI Naoyoshi (Keihanna Open Innovation Center 7-5-1 Seikadai, Seika-cho, Soraku-gu, Kyoto 94, 〒6190294, JP)
Application Number:
JP2017/040146
Publication Date:
May 16, 2019
Filing Date:
November 07, 2017
Export Citation:
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Assignee:
CONNEXX SYSTEMS CORPORATION (Keihanna Open Innovation Center, 7-5-1 Seikadai Seika-cho, Soraku-gu, Kyoto 94, 〒6190294, JP)
International Classes:
H01M16/00; H02J7/34
Domestic Patent References:
WO2009044511A12009-04-09
WO2014068865A12014-05-08
WO2017086400A12017-05-26
WO2017061161A12017-04-13
WO2014068895A12014-05-08
Foreign References:
JP2011015516A2011-01-20
JPH09330717A1997-12-22
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (Yusen Iwamoto-cho Bldg. 6F, 3-3 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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