Negativelektrode für Sekundärbatterien und Sekundärbatterie
Anmelder: Panasonic Energy Co., Ltd. 🇯🇵
Details
- Veröffentlichungs-Nr.
- EP4804255
- Anmeldetag
- 27. September 2024
- Veröffentlichung
- 8. Mai 2025
- Rechtsraum
- EP
Abstract
Disclosed is a negative electrode (12) for secondary batteries, which includes a negative electrode current collector (40) and a negative electrode mixture layer (41) that is formed on the surface of the negative electrode current collector (40). This negative electrode (12) for secondary batteries is characterized in that: the negative electrode mixture layer (41) includes, as a negative electrode active material, a carbon material and an Si-containing material; the negative electrode mixture layer (41) includes, as a conductive agent, a first conductive agent that has a G/D ratio of not less than 20 but less than 65 as determined by Raman spectroscopic measurement, and a second conductive agent that has a G/D ratio of not less than 0.7 but less than 20 as determined by Raman spectroscopic measurement; and the ratio (W2/W1) of the mass (W2) of the second conductive agent to the mass (W1) of the first conductive agent is less than 2.0.
Anmelder
- Firma
- Panasonic Energy Co., Ltd.
- Land
- 🇯🇵 Japan
Der Anmelder ist die Batteriesparte des japanischen Panasonic-Konzerns. Das Patentportfolio konzentriert sich sehr stark auf Halbleiter- und Elektrobauelemente, insbesondere Batteriezellen, ergänzt durch anorganische Chemie und elektrische Energietechnik. Anmeldungen laufen seit 2018 durchgehend fort.
447 Patente in unserer Datenbank