Bilevel equalizer for battery cell charge management

An equalizer circuit provides both passive and active charge transfer between cells in a battery pack to improve charge and discharge efficiency. The equalizer circuit is a bilevel circuit that uses both resistive equalizers and switching equalizers to balance cell charge. The cells may be grouped into size limited sections which are balanced by resistive equalizers. The sections are balanced by switching equalizers to promote increased pack discharge capacity.
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Abstract/Description: An equalizer circuit provides both passive and active charge transfer between cells in a battery pack to improve charge and discharge efficiency. The equalizer circuit is a bilevel circuit that uses both resistive equalizers and switching equalizers to balance cell charge. The cells may be grouped into size limited sections which are balanced by resistive equalizers. The sections are balanced by switching equalizers to promote increased pack discharge capacity.
Subject(s): H01M10/44
H02J7/00
H01M10/42
Date Issued: 2020-12-08
Title: Bilevel equalizer for battery cell charge management.
Name(s): Stuart, Thomas A., inventor
The University of Toledo, assignee
Type of Resource: text
Genre: patent
Date Issued: 2020-12-08
Other Date: Date Filed: 2017-01-27
Publisher: United States Patent and Trademark Office
Physical Form: application/pdf
Extent: 9 p.
Abstract/Description: An equalizer circuit provides both passive and active charge transfer between cells in a battery pack to improve charge and discharge efficiency. The equalizer circuit is a bilevel circuit that uses both resistive equalizers and switching equalizers to balance cell charge. The cells may be grouped into size limited sections which are balanced by resistive equalizers. The sections are balanced by switching equalizers to promote increased pack discharge capacity.
Identifier(s): utpatents-US10862318 (IID)
Patent No.: US10862318 (patno)
Appl. No.: 16/071970 (appno)
Subject(s): H01M10/44
H02J7/00
H01M10/42
Held by: United States Patent and Trademark Office (USPTO) Public Search Facility
Location: University of Toledo Digital Repository
Rights Statement: No Copyright - United States
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