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Title: Optical state-of-charge monitor for batteries

Abstract

A method and apparatus for determining the instantaneous state-of-charge of a battery in which change in composition with discharge manifests itself as a change in optical absorption. In a lead-acid battery, the sensor comprises a fiber optic system with an absorption cell or, alternatively, an optical fiber woven into an absorbed-glass-mat battery. In a lithium-ion battery, the sensor comprises fiber optics for introducing light into the anode to monitor absorption when lithium ions are introduced.

Inventors:
 [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
872505
Patent Number(s):
5949219
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
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
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
optical; state-of-charge; monitor; batteries; method; apparatus; determining; instantaneous; battery; change; composition; discharge; manifests; absorption; lead-acid; sensor; comprises; fiber; optic; cell; alternatively; woven; absorbed-glass-mat; lithium-ion; optics; introducing; light; anode; lithium; introduced; optical absorption; fiber optics; fiber optic; optical fiber; sensor comprises; lead-acid battery; absorption cell; lithium-ion battery; /320/324/356/429/

Citation Formats

Weiss, Jonathan D. Optical state-of-charge monitor for batteries. United States: N. p., 1999. Web.
Weiss, Jonathan D. Optical state-of-charge monitor for batteries. United States.
Weiss, Jonathan D. Fri . "Optical state-of-charge monitor for batteries". United States. https://www.osti.gov/servlets/purl/872505.
@article{osti_872505,
title = {Optical state-of-charge monitor for batteries},
author = {Weiss, Jonathan D},
abstractNote = {A method and apparatus for determining the instantaneous state-of-charge of a battery in which change in composition with discharge manifests itself as a change in optical absorption. In a lead-acid battery, the sensor comprises a fiber optic system with an absorption cell or, alternatively, an optical fiber woven into an absorbed-glass-mat battery. In a lithium-ion battery, the sensor comprises fiber optics for introducing light into the anode to monitor absorption when lithium ions are introduced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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