Michael G Semmens
Engineers in Austin, TX
License number
Colorado 20584
Issued Date
May 20, 1983
Renew Date
Jun 1, 2001
Expiration Date
May 31, 2003
Type
Professional Engineer
Address
Address
342 St Stephens School Rd S, Austin, TX 78746
Professional information
Sealed Recharge Battery Plenum Stabilized With State Changeable Substance
US Patent:
6074774, Jun 13, 2000
Filed:
Jun 3, 1998
Appl. No.:
9/089977
Inventors:
Michael G. Semmens - Austin TX
Ajoy Datta - Austin TX
Fardad Forouzan - Austin TX
Ajoy Datta - Austin TX
Fardad Forouzan - Austin TX
Assignee:
Electrosource, Inc. - San Marcos TX
International Classification:
H01M 1002, H01M 1006
US Classification:
429 50
Abstract:
A lead-acid battery including a case, a plurality of negative and positive electrode plates arranged in the case, a plurality of separators interposed between the negative and positive electrode plates, and a plenum stabilization material disposed within the case to maintain the positions of the electrode plates relative to one another and to other components within the case. The plenum stabilization material includes a compound that (i) is solid during normal operation of the battery and (ii) can undergo reversible physical change in state from solid to liquid when the battery is subjected to or is operated under abnormal conditions.