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Citation: Bin-He Zhu, Cheng-Zhu Ni, Na-Ni Wang, Xun-Yan Zhao, Wei-Qiang Guo, Pei-Min Zhang, Jia-Jie Zhang, Su-Qing Chen, Wei-De Lv, Yan Zhu. Determination of anions in lithium-ion batteries electrolyte by ion chromatography[J]. Chinese Chemical Letters, ;2016, 27(6): 864-866. doi: 10.1016/j.cclet.2016.01.037 shu

Determination of anions in lithium-ion batteries electrolyte by ion chromatography

a Department of Chemistry, Xixi Campus, Zhejiang University, Hangzhou 310028, China;
b Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou 310007, China;
c School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 317000, China;
d Hangzhou Vocational & Technical College, Hangzhou 310018, China

Received Date: 17 August 2015
Revised Date: 16 October 2015

Fund Project: This research was financially supported by Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province (Nos. 2014006, 2014007), National Important Project on Science Instrument (No. 2012YQ09022903) and Zhejiang Provincial Natural Science Foundation of China (Nos. LZ16B050001, LY15B050001, LY12B05003, LQ13B050001, Y13B020001).

A sensitive and accurate method based on ion chromatography was established for determination of five lithium salts in lithium-ion batteries electrolytes. Chromatographic analyses were carried out on an anion exchange column at flow rate of 1 mL/min. Under the optimal conditions, five target anions (BF₄^-, PF₆^-, TFSI^-, BOB^- and FSI^-) exhibited satisfactory linearity with a correlation coefficient of 0.9996. The relative standard derivations of the target anions were less than less than 0.94% (n = 7). The limits of detections were in the range of 0.068-0.29 mg/L with average spiked recoveries ranging from 96.8% to 105.1%.
- Ion chromatography,
- Lithium salts,
- Lithium-ion batteries electrolyte
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