Batterie und Verfahren zur Herstellung einer Positiven Elektrodenmischung

Details

Veröffentlichungs-Nr.

EP4787493

Anmeldetag

16. Januar 2026

Veröffentlichung

5. August 2026

Rechtsraum

EP

Abstract

Batteries using a positive electrode mixture comprising a sulfur-based positive electrode active material have room for improvement in terms of cycle characteristics. The battery of the present disclosure comprises a positive electrode mixture layer, an electrolyte layer, and a negative electrode. The positive electrode mixture layer comprises a sulfur-based active material and a P-containing sulfide. A <31>P solid-state NMR spectrum of the positive electrode mixture layer satisfies the relationship I1/I2 ≤ 0.10 ... (I1: integrated intensity of peak originating from P<2>S<5>, I2: integrated intensity that is the larger of integrated intensity of peak originating from P<2>S<6>4- and integrated intensity of peak originating from P<2>S<7>4- ).

Anmelder

Firma

Toyota Jidosha Kabushiki Kaisha

Land

🇯🇵 Japan