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1. (WO2018182490) AN ELECTROCHEMICAL DEVICE AND METHOD FOR CHARGING THE ELECTROCHEMICAL DEVICE

Pub. No.:    WO/2018/182490    International Application No.:    PCT/SE2018/050323
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 27 01:59:59 CEST 2018
IPC: H01M 10/052
H01M 10/44
H02J 7/00
Applicants: REHNLUND, David
NYHOLM, Leif
Inventors: REHNLUND, David
NYHOLM, Leif
Title: AN ELECTROCHEMICAL DEVICE AND METHOD FOR CHARGING THE ELECTROCHEMICAL DEVICE
Abstract:
The present invention relates to an electrochemical cell (10) comprising a negative electrode (11) comprising alkali metal or alkaline earth metal (e.g. lithium), a positive electrode (12), and an electrolytic solution (13) between the negative electrode (11) and positive electrode (12). A salt (e.g.LiPF6) comprising ions of the corresponding alkali metal or alkaline earth metal of the negative electrode is dissolved in the electrolytic solution (13) with a molarity lower than 0.25M, and at least one supporting salt (e.g.TBAPF6) is dissolved in the electrolytic solution to improve the conductivity of the electrolytic solution. In addition, the electrochemical cell is configured to receive at least one electrical nucleation pulse (20; 40) having a pulse length (lp) prior to applying an electrical deposition current (21; 41) for charging of the electrochemical cell (10).