Heat dissipation from a Ni-MH battery during charge and discharge with a secondary electrode reaction

Zhang, Zhong-Liang; Zhong, Minghong; Liu, Fuming; Zhong, Faping; Wu, Feng

doi:10.1016/s0378-7753(97)02687-6

Cited by 10 publications

(3 citation statements)

References 8 publications

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“…27,30,32 Further ignoring the temperature dependence of phase potential for simplicity, Eq. 10 is then simplified to [11] Substituting Eq. 11 into Eq.…”

Section: Model Developmentmentioning

confidence: 99%

“…37 It is worth mentioning that in arriving at Eq. 15, the heat effect associated with nonelectrochemical processes, such as water condensation and evaporation occurring in a nickel-hydrogen cell, 26 hydride formation in the MH electrode, 11 and active material decomposition in lithium-ion cells, 30 has not been considered. More generally, Eq.…”

Section: Model Developmentmentioning

confidence: 99%

“…Although experimental testing and microcalorimetric measurement [9][10][11] are necessary to obtain battery thermal data for design and optimization, a mathematical model based on first principles is capable of providing valuable internal information to help optimize the battery system in a cost-effective manner.…”

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confidence: 99%

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Thermal-Electrochemical Modeling of Battery Systems

Wang

2000

J. Electrochem. Soc.

627

327

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A general form of the thermal energy equation for a battery system is derived based on first principles using the volume-averaging technique. A thermal-electrochemical coupled modeling approach is presented to simultaneously predict battery electrochemical and thermal behaviors. This approach couples the thermal energy equation with the previous multiphase micro-macroscopic electrochemical model via the heat generation and temperature-dependent physicochemical properties. The thermal-electrochemical model is multidimensional and capable of predicting the average cell temperature as well as the temperature distribution inside a cell. Numerical simulations are performed on a Ni-MH battery to demonstrate the significance of thermal-electrochemical coupling and to investigate the effects of thermal environment on battery electrochemical and thermal behaviors under various charging conditions.

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“…27,30,32 Further ignoring the temperature dependence of phase potential for simplicity, Eq. 10 is then simplified to [11] Substituting Eq. 11 into Eq.…”

Section: Model Developmentmentioning

confidence: 99%