US 12,436,046 B1
Multifunctional calorimeter for measurements of lumped and two dimensional heat generation rates and entropy coefficients of pouch type lithium-ion battery
Song-Yul Choe, Auburn, AL (US); and Yang Hu, Irvine, CA (US)
Assigned to AUBURN UNIVERSITY, Auburn, AL (US)
Filed by AUBURN UNIVERSITY, Auburn, AL (US)
Filed on Oct. 3, 2022, as Appl. No. 17/959,044.
Claims priority of provisional application 63/251,253, filed on Oct. 1, 2021.
Int. Cl. G01K 17/00 (2006.01); G01N 25/20 (2006.01)
CPC G01K 17/00 (2013.01) [G01N 25/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A calorimeter apparatus for measuring lumped and two dimensional heat generation of a battery cell having a battery cell surface, the apparatus comprising:
a first thermoelectric assembly;
a second thermoelectric assembly; and
at least two heat flux sensors positioned between the first and second thermoelectric assemblies;
wherein the first and second thermoelectric assemblies are operable to selectively receive the battery cell between the first and second thermoelectric assemblies and substantially maintain a temperature of the battery cell surface in conformity with a predetermined temperature profile; and
wherein when the battery cell is positioned between the first and second thermoelectric assemblies, the at least two heat flux sensors are operable to measure heat generation rates of the battery cell at corresponding portions of the battery cell surface.