Title:
BATTERY ANODE ACTIVE MATERIAL LIQUID, BATTERY CATHODE ACTIVE MATERIAL LIQUID AND PREPARATION METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2018198109
Kind Code:
A
Abstract:
To provide a battery anode active material liquid which enables charge/discharge to be performed stably and with high energy efficiency while maintaining sufficient electrode reactivity and flowability even under a free charge/discharge operation without being limited by a specific vanadium concentration or a sulfur concentration in a hydrogen sulfate root shape or the like and especially, while making a complex in the liquid unlikely to transit to a precipitation type vanadium compound even in a case where the vanadium concentration is made high, a battery cathode active material liquid and a preparation method therefor.SOLUTION: The present invention relates to a battery anode active material liquid consisting of a liquid containing a sulfuric acid vanadium compound. The battery anode active material liquid uses a carbon electrode which contains divalent and trivalent vanadium and for which a half-value width of a 002 diffraction peak in X-ray diffraction analysis is 2.5° or less. The battery anode active material liquid is characterized in detecting multiple oxidized waves of the divalent vanadium that is observed in accordance with a potential sweep method in which the electrode and the battery anode active material liquid are made stationary and a potential is swept from a negative side of -0.1V to a positive side in a standard hydrogen electrode potential reference.SELECTED DRAWING: Figure 1
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Inventors:
HOSOBUCHI KAORU
NAKAI TAKAYUKI
MATSUURA HIROAKI
HAMANA HIROSHI
NAKAI TAKAYUKI
MATSUURA HIROAKI
HAMANA HIROSHI
Application Number:
JP2015202439A
Publication Date:
December 13, 2018
Filing Date:
October 13, 2015
Export Citation:
Assignee:
GALAXY CORP
CHIKOJI GAKUEN
CHIKOJI GAKUEN
International Classes:
H01M8/18; H01M4/96
Attorney, Agent or Firm:
Eiichi Maruyama