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1. WO2016182916 - REPLENISHED NEGATIVE ELECTRODES FOR SECONDARY BATTERIES

Publication Number WO/2016/182916
Publication Date 17.11.2016
International Application No. PCT/US2016/031222
International Filing Date 06.05.2016
IPC
H01M 10/42 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/44 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01M 10/052 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
CPC
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/446
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
446Initial charging measures
H01M 10/448
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
448End of discharge regulating measures
H01M 10/48
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
48Accumulators combined with arrangements for measuring, testing or indicating condition, e.g. level or density of the electrolyte
H01M 4/386
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
386Silicon or alloys based on silicon
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • ENOVIX CORPORATION [US]/[US]
Inventors
  • CASTLEDINE, Christopher, G.
  • FOUCHARD, David, T.
  • DOAN, Jonathan, C.
  • SPINDT, Christopher, J.
  • SPOTNITZ, Robert, M.
  • WILCOX, James, D.
  • LAHIRI, Ashok
  • RAMASUBRAMANIAN, Murali
Agents
  • COTTON, Abigail
Priority Data
62/158,75808.05.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REPLENISHED NEGATIVE ELECTRODES FOR SECONDARY BATTERIES
(FR) ÉLECTRODES NÉGATIVES RÉGÉNÉRÉES POUR BATTERIES SECONDAIRES
Abstract
(EN)
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 Vpos,eod and a negative electrode end of discharge voltage Vneg,eod when the cell is at a predefined Vcell,eod value, the value of Vpos,eod corresponding to a voltage at which the state of charge of the positive electrode is at least 95% of its coulombic capacity and Vneg,eod is at least 0.4 V (vs Li) but less than 0.9 V (vs Li).
(FR)
L'invention concerne un procédé pour activer une batterie secondaire possédant une électrode négative, une électrode positive, et un séparateur microporeux entre les électrodes négative et positive imprégné avec un électrolyte contenant des ions porteurs, l'électrode négative comportant du silicium à activation anodique ou un alliage de celui-ci. Le procédé comprend le transfert d'ions porteurs depuis l'électrode positive vers l'électrode négative pour au moins partiellement charger la batterie secondaire, et le transfert des ions porteurs depuis une électrode auxiliaire vers l'électrode positive, pour fournir à la batterie secondaire une tension de fin de décharge Vpos,eod d'électrode positive et une tension de fin de décharge Vneg,eod d'électrode négative lorsque la cellule est à une valeur VCell,eod prédéfinie, la valeur de Vpos,eod correspondant à une tension à laquelle l'état de charge de l'électrode positive est au moins 95 % de sa capacité en coulomb et Vneg,eod est d'au moins 0,4 V (par rapport à Li) mais inférieure à 0,9 V (par rapport à Li).
Latest bibliographic data on file with the International Bureau