Presentation 2003/1/10
Development of VRLA for Load-Leveling Use
Eiji HOJO, Takao TSUTSUMI, Tetsuo TAKAMA, Kazumasa MATSUI,
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Abstract(in English) The development of various battery technologies used for the load-leveling system have been competed among many organizations concerned. Recently, the service life of a valve regulated lead acid battery (VRLAB) has reached the same level of the so-called advanced batteries. Under such circumstance, we have been focusing on the improvement of the service life of VRLAB by applying and utilizing the corrosion protection technology on positive electrode, the formula of negative electrode additives, a suitable separator for cyclic use and the optimized charge condition obtained from development of the VRLAB for electric vehicle and out of our fundamental studies. In this article, we would like to give a report on the achievement we have made on the VRLAB (50Ah/10HR), which has been under development reached 7000 cycles (1CA discharge pattern, DOD 70%) that greatly exceed 4000 cycles of our original target.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Load-Leveling / VRLA-battery / Positive grid corrosion / Electrolyte stratification / Charge condition
Paper # EE2002-60,CPM2002-136
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Conference Information
Committee EE
Conference Date 2003/1/10(1days)
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Paper Information
Registration To Energy Engineering in Electronics and Communications (EE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Development of VRLA for Load-Leveling Use
Sub Title (in English)
Keyword(1) Load-Leveling
Keyword(2) VRLA-battery
Keyword(3) Positive grid corrosion
Keyword(4) Electrolyte stratification
Keyword(5) Charge condition
1st Author's Name Eiji HOJO
1st Author's Affiliation Yuasa Corporation Research & Development Division Company()
2nd Author's Name Takao TSUTSUMI
2nd Author's Affiliation Yuasa Corporation Research & Development Division Company
3rd Author's Name Tetsuo TAKAMA
3rd Author's Affiliation Yuasa Corporation Research & Development Division Company
4th Author's Name Kazumasa MATSUI
4th Author's Affiliation Yuasa Corporation Research & Development Division Company
Date 2003/1/10
Paper # EE2002-60,CPM2002-136
Volume (vol) vol.102
Number (no) 567
Page pp.pp.-
#Pages 6
Date of Issue