The Effect of Active Material, Conductive Additives, and Binder in a Cathode Composite Electrode on Battery Performance

Yoon Koo Lee
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Yoon Koo Lee: Battery R&D, LG Chem, Ltd., 36, Janggunmaeul 3-gil, Gwacheon 13818, Korea

Energies, 2019, vol. 12, issue 4, 1-19

Abstract: The current study investigated the effects of active material, conductive additives, and binder in a composite electrode on battery performance. In addition, the parameters related to cell performance as well as side reactions were integrated in an electrochemical model. In order to predict the cell performance, key parameters including manganese dissolution, electronic conductivity, and resistance were first measured through experiments. Experimental results determined that a higher ratio of polymer binder to conductive additives increased the interfacial resistance, and a higher ratio of conductive additives to polymer binder in the electrode resulted in an increase in dissolved transition metal ions from the LiMn 2 O 4 composite electrode. By performing a degradation simulation with these parameters, battery capacity was predicted with various fractions of constituents in the composite electrode. The present study shows that by using this integrated prediction method, the optimal ratio of constituents for a particular cathode composite electrode can be specified that will maximize battery performance.

Keywords: Lithium ion battery; cathode; composite electrode; degradation; simulation; transition metal dissolution (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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