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Title:
VALVE-REGULATED LEAD-ACID STORAGE BATTERY
Document Type and Number:
WIPO Patent Application WO/2015/087749
Kind Code:
A1
Abstract:
Provided is a valve-regulated lead-acid storage battery operated in a partial state of charge and having excellent cycle characteristics. Carbon black and graphite are added to a negative electrode active material for a negative electrode plate forming the valve-regulated lead-acid storage battery. A graphite having an average particle size of no more than 90 µm and having a DBP absorption of at least 55 ml/100 g is used as the graphite added to the negative electrode active material.

Inventors:
UDAGAWA YUU
Application Number:
PCT/JP2014/081945
Publication Date:
June 18, 2015
Filing Date:
December 03, 2014
Export Citation:
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Assignee:
SHIN KOBE ELECTRIC MACHINERY (JP)
International Classes:
H01M4/62; H01M4/14
Foreign References:
JP2008153128A2008-07-03
JP2007173112A2007-07-05
JPH05174825A1993-07-13
Attorney, Agent or Firm:
NISHIURA Tsuguharu (JP)
Tsugiharu Nishiura (JP)
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