Patent ID: 11901556
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. An all solid state battery comprising an anode layer, a cathode layer, and a solid electrolyte layer including a solid electrolyte and formed between the cathode layer and the anode layer, wherein
one of the anode layer and the cathode layer includes an active material comprising a silicon clathrate type crystal phase,
the active material includes a Na element, a Si element and a Ge element,
a proportion of the Ge element to a total of the Si element and the Ge element is 0.5 atm % or more and 1 atm % or less, and
an atomic part of the Na element to 136 atomic parts of the Si element is 2.0 parts or more and 5.4 parts or less,
such that the active material has a composition represented by NaWGezSi136-z, where 2.0≤w≤5.4 and 1<z≤1.36.