Title:
A method for determining the content of impurities in the solvent for an electrolytic solution, a method for producing an electrolytic solution using the method, and an electrolytic solution.
Document Type and Number:
Japanese Patent JP6349940
Kind Code:
B2
Abstract:
Provided are a method for judging the amount of impurities in a solvent for an electrolyte liquid to be used in a non-aqueous electrolyte liquid battery, that enables judging, more easily than conventionally, the amount in which several types of impurities causing degradation of battery performance is contained in the solvent; a method for producing an electrolyte liquid using this judging method; and an electrolyte liquid. The judging method includes: obtaining a reaction solution by adding a Lewis acid to the solvent; measuring the Hazen value of the reaction solution; and judging whether the value is no more than a predetermined threshold. The producing method includes mixing, with an electrolytic salt, the solvent for which the Hazen value has been judged to be no more than the threshold by the judging method. The electrolyte liquid contains: the solvent with the Hazen value as judged above; and an electrolytic salt.
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Inventors:
Keita Nakahara
Natsuya Nishimura
Natsuya Nishimura
Application Number:
JP2014098727A
Publication Date:
July 04, 2018
Filing Date:
May 12, 2014
Export Citation:
Assignee:
Central Glass Co., Ltd.
International Classes:
H01M10/0569; H01M10/0525; H01M10/0568
Domestic Patent References:
| JP10270076A | ||||
| JP2011251939A | ||||
| JP2006506324A | ||||
| JP2000277125A | ||||
| JP2008293813A |
Foreign References:
| WO2011065528A1 | ||||
| WO2012063832A1 | ||||
| US6586605 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Tetsuo Shiba
Iwaike Mitsuru
Yuichi Niiyama
Hayashi Ichiyoshi
Tetsuo Shiba
Iwaike Mitsuru
Yuichi Niiyama