Electrode binder for lithium-ion battery
AssigneeKaneka Corporation
InventorSeigo Takamido
Life of this patent
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Abstract
An electrode binder for a lithium-ion battery including core-shell particles is provided. Each core shell particle includes a rubber core and a shell layer located outside the core. The shell layer includes a shell-forming polymer containing at least one type of monomer units selected from the group consisting of methacrylic acid units and (poly) alkylene glycol chain-containing (meth)acrylic ester units. The proportion of the methacrylic acid units in the shell-forming polymer is from 5 to 40 wt % or the proportion of the (poly) alkylene glycol chain-containing (meth) acrylic ester units in the shell-forming polymer is from 10 to 30 wt %.
Claims14
An electrode binder for a lithium-ion battery, comprising core-shell particles, each core shell particle comprising:
- a rubber core;
- and
- a shell layer located outside the core, wherein the shell layer comprises a shell-forming polymer comprising at least one type of monomer units selected from the group consisting of methacrylic acid units and (poly)alkylene glycol chain-containing (meth)acrylic ester units, wherein:
- a proportion of the methacrylic acid units in the shell-forming polymer is from 5 to 40 wt %;
- or
- a proportion of the (poly)alkylene glycol chain-containing (meth)acrylic ester units in the shell-forming polymer is from 10 to 30 wt %.
Dependencies are inferred from the claim text.