Regenerierte Negativelektroden für Sekundärbatterien

Details

Veröffentlichungs-Nr.

EP4769559

Anmeldetag

6. Mai 2016

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

IPC

H01M4/38

Abstract

A method is provided for activating a secondary battery having a negative electrode, a positive electrode, and a microporous separator between the negative and positive electrodes permeated with carrier-ion containing electrolyte, the negative electrode having anodically active silicon or an alloy thereof. The method includes transferring carrier ions from the positive electrode to the negative electrode to at least partially charge the secondary battery, and transferring carrier ions from an auxiliary electrode to the positive electrode, to provide the secondary battery with a positive electrode end of discharge voltage V<pos,eod> and a negative electrode end of discharge voltage V<neg,eod> when the cell is at a predefined V<cell,eod> value, the value of V<pos,eod> corresponding to a voltage at which the state of charge of the positive electrode is at least 95% of its coulombic capacity and V<neg,eod> is at least 0.4 V (vs Li) but less than 0.9 V (vs Li).

Anmelder

Firma

Enovix Corporation

Land

🇺🇸 USA