In-situ Electrochemical Impedance Spectroscopy of Battery Cells by means of Binary Sequences

被引：8

作者：

De Angelis, Alessio ^{[1
]}

Ramilli, Roberta ^{[2
]}

Crescentini, Marco ^{[3
]}

Moschitta, Antonio ^{[1
]}

Carbone, Paolo ^{[1
]}

Traverso, Pier Andrea ^{[3
]}

机构：

[1] Univ Perugia, Dept Engn, Perugia, Italy

[2] Univ Bologna, Adv Res Ctr Elect Syst ARCES, Cesena, Italy

[3] Univ Bologna, Dept Elect Elect & Informat Engn DEI, Bologna, Italy

来源：

2021 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC 2021) | 2021年

关键词：

Electrochemical Impedance Spectroscopy; batteries; Binary sequences; Sigma-Delta; Maximum-Length Binary Sequences; IDENTIFICATION;

D O I：

10.1109/I2MTC50364.2021.9459998

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the use of binary sequences for electrochemical impedance spectroscopy (EIS) of battery cells is experimentally investigated by implementing them on a VLSI 1-bit current digital-to-analog converter. Two types of binary sequences are considered, i.e. sigma-delta modulated multisine sequences and maximum-length binary sequences. Their performance is evaluated using a low-complexity experimental setup. Results prove that the two types of sequences are capable of estimating the complex impedance of a battery in the frequency range of interest 1 Hz -200 Hz with an RMSE smaller than 5% with respect to a reference instrument. Both sequences are suitable for implementing online in-situ EIS monitoring, because they enable fast measurement and simple integration within the battery cell itself.

引用

页数：5

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