Electrode for a lithium-ion battery and process for its preparation
AssigneeDynasol ElastóMeros, S.A.U.
InventorsSergio Corona Galván, Senetxu Lanceros Méndez, Pedro Filipe Ribeiro Da Costa, Carlos Miguel Da Silva Costa
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Abstract
It is provided an electrode for a lithium-ion battery comprising an active layer comprising a linear styrene-ethylene/butylene-styrene (SEBS) copolymer as a binder which is characterized by having a melt flow rate (MFR) measured at 230° C. and 2.16 kg load from 4 to 220 g/10 min; a molecular weight of less than 100,000 g/mol, particularly from 50,000 g/mol to 100,000 g/mol and; a styrene content from 10 to 20 wt. %. It is also provided a process for the preparation of the electrode, which can be a cathode or an anode, and a Li-ion battery comprising the electrode.
Claims20
An electrode for a lithium-ion battery comprising an active layer comprising an electrode active material;
- a conductive additive;
- and a binder, wherein the binder consists of a linear styrene-ethylene/butylene-styrene (SEBS) copolymer characterized by having:
- a melt flow rate (MFR) measured at 230° C. and 2.16 kg load from 4 to 220 g/10 min;
- a molecular weight of 50,000 g/mol to 100,000 g/mol;
- a styrene content from 10 wt % to 20 wt %;
- and
- a vinyl content from 50 wt % to 65 wt %.
Dependencies are inferred from the claim text.