Title: Methods for solid electrolyte interphase formation and anode pre-lithiation of lithium ion capacitors

Abstract

A method of pre-doping an anode of an energy storage device can include immersing the anode and a dopant source in an electrolyte, and coupling a substantially constant current between the anode and the dopant source. A method of pre-doping an anode of an energy storage device can include immersing the anode and a dopant source in an electrolyte, and coupling a substantially constant voltage across the anode and the dopant source. An energy storage device can include an anode having a lithium ion pre-doping level of about 60% to about 90%.

Inventors:

Raman, Santhanam; Xi, Xiaomei; Ye, Xiang-Rong

Issue Date:

Tue Jul 18 00:00:00 EDT 2017

Research Org.:

Maxwell Technologies, Inc. San Diego, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1371843

Patent Number(s):

9711297

Application Number:

14/258,784

Assignee:

Maxwell Technologies, Inc.

Patent Classifications (CPCs):

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

H01G11/06 - with one of the electrodes allowing ions or anions to be reversibly doped thereinto, e.g. lithium-ion capacitors [LICs]
H01G11/50 - specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
H01G11/86 - specially adapted for electrodes

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M4/0459 - {Electrochemical doping, intercalation, occlusion or alloying}
H01M4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M4/1393 - of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M4/587 - for inserting or intercalating light metals
H01M6/5005 - {Auxiliary electrodes}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E60/10 - Energy storage
Y02E60/13 - Ultracapacitors, supercapacitors, double-layer capacitors

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DOE Contract Number:  

FC2605NT42403

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Apr 22

Country of Publication:

United States

Language:

English

Subject:

25 ENERGY STORAGE