Negative-electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery

A non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material has improved initial charge/discharge efficiency. A negative-electrode active material particle (10) according to an embodiment contains a base particle (13), which includes a lithium...

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Bibliographische Detailangaben
Hauptverfasser: Minami, Hiroshi, Sunano, Taizou
Format: Patent
Sprache:eng
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Zusammenfassung:A non-aqueous electrolyte secondary battery that contains a silicon material as a negative-electrode active material has improved initial charge/discharge efficiency. A negative-electrode active material particle (10) according to an embodiment contains a base particle (13), which includes a lithium silicate phase (11) represented by Li2zSiO(2+z) {0