Academic Journal of Engineering and Technology Science, 2020, 3(2); doi: 10.25236/AJETS.2020.030206.
Pingqiong Wang, Lingmin Ji
School of mechanical engineering, Jiangsu University, 212013, Zhenjiang, China
The growth of lithium crystal is one of the important causes of short circuit in the power lithium-ion battery, which can cause the battery heat to lose control. In this paper, the short circuit that caused by the growth of lithium branches in lithium-ion battery, was studied by using the method of finite element numerical simulation. The characteristics of battery response under the radius of different lithium branches were compared and analyzed. The results show that the inner short circuit will cause the local region to heat up rapidly, and the maximum temperature will have a certain downward trend with time; and with the increase of the radius of lithium branches, the maximum temperature of the battery and the local load value of the negative region will increase, and the local load value of the negative region will be concentrated between 0.6-0.7.
lithium crystal; inner short circuit; multiphysics; lithium-ion battery; thermal conduction
Pingqiong Wang, Lingmin Ji. Study on short circuits in power lithiumion batteries based on the radius of lithium branches . Academic Journal of Engineering and Technology Science (2020) Vol. 3 Issue 2: 40-47. https://doi.org/10.25236/AJETS.2020.030206.
 Han Xuebing. Research on the mechanism model and state estimation of lithium-ion battery for vehicles. Beijing: Tsinghua University, 2014.
 Lu L , Han X , Li J , et a. A review on the key issues for lithiumion battery management in electric vehicles[J]. Journal of Power Sources, 2013, 226: 272-288.
 Bhattacharyya R , Key B , Chen HL , Best AS , Hollen Kamp AF , Grey CP. Insitu NMR of the formation of the formation of lithiummicrostructures in lithium batteries . Nature Materials, 2010, 9 (6): 504510.
 Steiger J , Richter G , Wenk M , et al. Comparison of the growth of the lithiumum filaments and dendrites under condition s. Electrochemistry Communications, 2015, 50: 11-14.
 Golodnitsky, D. Mechanisms in Concentrated LiI-Polyethylene Oxide-Al s?sub 2?sub 3-Base-Base Solid Works. Journal of The Electro--Chemical Society, 1997, 144 (10): 3484.
 Rosso M , Chazalviel J N , Fleury V , et al. an. adh ium for gravity caused motion in the senseofity of ramified electrodeposits . Electrochimica Acta, 1994, 39 (4): 507-515.
 Brissot C , Rosso M , Chazalviel J N . Dendritic growth mechanisms in lithium /polymer cells. Journal of Power Sources, 1999, 81/82: p.925-929.
 Zhao W , Luo G , Wang CY. Modeling gamin processin large formatliion cells. Journal of The Electro Chemical Society, 2015, 162 (1): A207-A217.