Impact of alginate and fluoroethylene carbonate on the electrochemical performance of SiO–SnCoC anode for lithium-ion batteries

LUQUE, GUILLERMINA L.; LI, YAN; ZENG, XIAOQIAO; LUO, XIANGYI; LEIVA, EZEQUIEL P. M.; CHEN, ZONGHAI; AMINE, KHALIL

JOURNAL OF SOLID STATE ELECTROCHEMISTRY (PRINT)

SPRINGER

Año: 2019 vol. 23 p. 397 - 405

1432-8488

The electrochemical performance of SiO?SnCoC composite anode for high-energy lithium-ion batteries was evaluated with particular emphasis on the impact of Alginate as a polymeric binder, as well as fluoroethylene carbonate (FEC) as electrolyte additive. It was found that the presence of FEC and the use of alginate pH 3 as binder help to improve the electrochemical stability of the composite anode, showing the best electrochemical performance with a high specific capacity, great capacity retention, and excellent coulombic efficiency. Particularly, the high precision self-discharge current study revealed that the alginate binder slowed down the parasitic reactions between the lithiated anode and the non-aqueous electrolyte.