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Title: Methods and energy storage devices utilizing electrolytes having surface-smoothing additives

Patent ·
OSTI ID:1225697
; ; ; ;

Electrodeposition and energy storage devices utilizing an electrolyte having a surface-smoothing additive can result in self-healing, instead of self-amplification, of initial protuberant tips that give rise to roughness and/or dendrite formation on the substrate and anode surface. For electrodeposition of a first metal (M1) on a substrate or anode from one or more cations of M1 in an electrolyte solution, the electrolyte solution is characterized by a surface-smoothing additive containing cations of a second metal (M2), wherein cations of M2 have an effective electrochemical reduction potential in the solution lower than that of the cations of M1.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
Battelle Memorial Institute
Patent Number(s):
9,184,436
Application Number:
13/495,745
OSTI ID:
1225697
Resource Relation:
Patent File Date: 2012 Jun 13
Country of Publication:
United States
Language:
English

References (6)

Method of preparing a cathode by high and low temperature electroplating of catalytic and sacrificial metals, and electrode prepared thereby patent May 1982
Conjugated polymer as substrate for the plating of alkali metal in a nonaqueous secondary battery patent September 1987
Non-aqueous electrochemical cell patent February 1992
Nonaqueous electolytic solution, composition for polymer gel electrolyte, polymer gel electrolyte, secondary cell, and electric double-layer capacitor patent-application July 2004
Lithium Difluorophosphate, Electrolyte Containing Lithium Difluorophosphate, Process for Producing Lithium Difluorophosphate, Process for Producing Nonaqueous Electrolyte, Nonaqueous Electrolyte, and Nonaqueous Electrolyte Secondary Battery Containing the Same patent-application November 2009
Dendrite-Free Lithium Deposition via Self-Healing Electrostatic Shield Mechanism journal March 2013

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Related Subjects

25 ENERGY STORAGE