Detection method of sulfate ion in electrolyte used for lithium ion battery
A sulfate ion and lithium ion battery technology, applied in the field of electrochemistry, can solve the problems of inapplicability, and achieve the effect of realizing measurement and convenient observation and comparison
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[0024] The present invention will be described in detail below in conjunction with specific embodiment:
[0025] 1. Instruments and reagents are shown in Table 1:
[0026] Table 1
[0027]
name
Specification
1
Stoppered colorimetric tube
50mL
[0028] 2
Electronic balance
Division value 0.0001g
3
Analytical pure
4
Analytical pure
5
Analytical pure
6
Absolute ethanol
Analytical pure
7
Comply with GB-6682 three-level water specification
[0029] 2. Determination method:
[0030] 1. Prepare ethanol aqueous solution (m 乙醇 :m 水 =1︰2): Weigh 300g of absolute ethanol and 600g of distilled water, mix well, and set aside.
[0031] 2. Prepare 0.5 mol / L barium chloride aqueous solution (pH=1): Weigh 122g barium chloride dihydrate and 9.8g concentrated hydrochloric acid, ...
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