Electrode active material, electrode layer, and solid-state battery
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKazushige NOMOTO, Jun Yoshida, Ryosuke Furuya, Hirofumi Nakamoto, So Yubuchi, Chikuen Wong
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Abstract
An electrode active material includes primary particles containing a silicon element, the primary particles being provided as secondary particles by a binder. The primary particles are porous, and an average pore size of pores of the primary particles is more than 4.1 nm. A molecular size D50 in a molecular size distribution of the binder is less than 1,859 nm. The molecular size D50 is equal to or larger than the average pore size.
Claims5
An electrode active material comprising primary particles containing a silicon element, the primary particles being provided as secondary particles by a binder, wherein:
- the primary particles are porous, and an average pore size of pores of the primary particles is more than 4.1 nm;
- a molecular size D50 in a molecular size distribution of the binder is less than 1,859 nm;
- and
- the molecular size D50 is equal to or larger than the average pore size.
Dependencies are inferred from the claim text.