ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, BATTERY PACK, AND VEHICLE

摘要

A negative electrode active material of an embodiment for a nonaqueous electrolyte battery includes silicon or silicon oxide including silicon inside, a carbonaceous substance containing the silicon or the silicon oxide including silicon inside, and a phase including a silicate compound and a conductive assistant, the phase being interposed between the silicon or the silicon oxide including silicon inside and the carbonaceous substance. The silicate compound is a complexed oxide including an oxide including at least one element selected from the group consisting of; an alkaline earth element, a transition metal element, and a rare-earth element and a silicon oxide.

主权项

1. A negative electrode active material for a nonaqueous electrolyte battery, comprising:
silicon or silicon oxide including silicon inside; a carbonaceous substance containing the silicon or the silicon oxide including silicon inside; and a phase including a silicate compound and a conductive assistant, the phase being interposed between the silicon or the silicon oxide including silicon inside and the carbonaceous substance, wherein the silicate compound is a complexed oxide including an oxide including at least one element selected from the group consisting of; an alkaline earth element, a transition metal element, and a rare-earth element and a silicon oxide.