Electrode properties and heat generation rate in Ni-Cd, Ni-H2, and Ni-MH cells

被引：0

作者：

Vaidyanathan, H ^{[1
]}

Rao, GM ^{[1
]}

机构：

[1] Comsat Labs, Clarksburg, MD 20871 USA

来源：

IECEC-97 - PROCEEDINGS OF THE THIRTY-SECOND INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4: VOL.1: AEROSPACE POWER SYSTEMS AND TECHNOL; VOL 2: ELECTROCHEMICAL TECHNOL, CONVERSION TECHNOL, THERMAL MANAGEMENT; VOLS 3: ENERGY SYSTEMS, RENEWABLE ENERGY RESOURCES, ENVIRONMENTAL IMPACT, POLICY IMPACTS ON ENERGY; VOL 4: POST DEADLINE PAPERS, INDEX | 1997年

关键词：

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The electrode properties and heat generation rates of Ni-Cd, Ni-H-2, and Ni-MH battery cells during charge and discharge are compared based on experimental data obtained using a radiative-type calorimeter. For all three cell types, a region of endothermic cooling and minimal heat generation occurs in the early periods of charge, followed by increasing heat generation as the state of charge of the cell increases. The discharge reaction produces the highest amount of heat, in the order Ni-H-2 > Ni-Cd > Ni-MH. This gradation in heat generation is due to reactions at the negative electrodes. There is also a gradation in thermoneutral potential, with the value for Ni-MH being close to its open-circuit potential.

引用

页码：83 / 86

页数：4