Negativelektrode einer Sekundärbatterie, Verfahren zur Herstellung der Negativelektrode und Sekundärbatterie mit der Negativelektrode
Anmelder: Prime Planet Energy & Solutions, Inc. 🇯🇵
Details
- Veröffentlichungs-Nr.
- EP4718506
- Anmeldetag
- 3. September 2025
- Veröffentlichung
- 1. April 2026
- Rechtsraum
- EP
Abstract
A negative electrode containing Si-C composite particles (10) and graphite particles (14), and capable of suppressing capacity degradation when a secondary battery is repeatedly charged and discharged is provided. The negative electrode of a secondary battery of the present disclosure includes a negative electrode current collector (62), and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer contains graphite particles and Si-C composite particles as a negative electrode active material. Each of the Si-C composite particles includes a porous skeleton (11) made of carbon, and Si-containing particles located in voids (11a) of the porous skeleton. A coating (13) including LiF is formed on at least a part of an outer surface of each of the Si-C composite particles.
Anmelder
- Firma
- Prime Planet Energy & Solutions, Inc.
- Land
- 🇯🇵 Japan
Japanisches Gemeinschaftsunternehmen von Toyota und Panasonic mit Sitz in Tokio, spezialisiert auf Entwicklung und Herstellung von Batteriezellen und Batteriesystemen für Fahrzeuge.
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