Title: Systems and methods for evaluating electrolyte wetting and distribution

Abstract

Systems and techniques for measuring process characteristics including electrolyte distribution in a battery cell. A non-destructive method for analyzing a battery cell includes determining acoustic features at two or more locations of the battery cell, the acoustic features based on one or more of acoustic signals travelling through at least one or more portions of the battery cell during one or more points in time or responses to the acoustic signals obtained during one or more points in time, wherein the one or more points in time correspond to one or more stages of electrolyte distribution in the battery cell. One or more characteristics of the battery cell are determined based on the acoustic features at the two or more locations of the battery cell.

Inventors:

Dou, Shan; Hsieh, Andrew Gaheem; Biswas, Shaurjo; Van Tassell, Barry James; Lee, Elizabeth M.; Yu, Dennis; Yu, Jason Y.

Issue Date:

Tue Mar 07 00:00:00 EST 2023

Research Org.:

Liminal Insights, Inc., Emeryville, CA (United States)

Sponsoring Org.:

USDOE Advanced Research Projects Agency

OSTI Identifier:

1987213

Patent Number(s):

11600870

Application Number:

16/826,718

Assignee:

Liminal Insights, Inc. (Emeryville, CA)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL

G01F23/296 - Acoustic waves

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N2291/022 - Liquids
G01N2291/02441 - Liquids in porous solids
G01N2291/02836 - Flow rate, liquid level
G01N2291/105 - two or more emitters, two or more receivers
G01N2291/106 - one or more transducer arrays
G01N29/024 - by measuring propagation velocity or propagation time of acoustic waves
G01N29/032 - by measuring attenuation of acoustic waves
G01N29/036 - by measuring frequency or resonance of acoustic waves
G01N29/0654 - {Imaging}
G01N29/262 - {by electronic orientation or focusing, e.g. with phased arrays
G01N29/4427 - {with stored values, e.g. threshold values}
G01N29/46 - by spectral analysis, e.g. Fourier analysis {or wavelet analysis

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

H01M10/0413 - {Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes}
H01M10/4285 - {Testing apparatus}
H01M10/446 - {Initial charging measures}
H01M10/484 - {for measuring electrolyte level, electrolyte density or electrolyte conductivity}

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

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DOE Contract Number:  

AR0000866

Resource Type:

Patent

Resource Relation:

Patent File Date: 03/23/2020

Country of Publication:

United States

Language:

English