Chemical rate phenomenon approach applied to lithium battery capacity fade estimation

2016 ◽  
Vol 64 ◽  
pp. 134-139 ◽  
Author(s):  
I. Baghdadi ◽  
O. Briat ◽  
J.Y. Delétage ◽  
P. Gyan ◽  
J.M. Vinassa
2015 ◽  
Vol 15 (4) ◽  
pp. 301 ◽  
Author(s):  
Y.Y. Mamyrbayeva ◽  
R.E. Beissenov ◽  
M.A. Hobosyan ◽  
S.E. Kumekov ◽  
K.S. Martirosyan

<p>There are technical barriers for penetration market requesting rechargeable lithium-ion battery packs for portable devices that operate in extreme hot and cold environments. Many portable electronics are used in very cold (-40 °C) environments, and many medical devices need batteries that operate at high temperatures. Conventional Li-ion batteries start to suffer as the temperature drops below 0 °C and the internal impedance of the battery  increases. Battery capacity also reduced during the higher/lower temperatures. The present work describes the laboratory made lithium ion battery behaviour features at different operation temperatures. The pouch-type battery was prepared by exploiting LiCoO<sub>2</sub> cathode material synthesized by novel synthetic approach referred as Carbon Combustion Synthesis of Oxides (CCSO). The main goal of this paper focuses on evaluation of the efficiency of positive electrode produced by CCSO method. Performance studies of battery showed that the capacity fade of pouch type battery increases with increase in temperature. The experimental results demonstrate the dramatic effects on cell self-heating upon electrochemical performance. The study involves an extensive analysis of discharge and charge characteristics of battery at each temperature following 30 cycles. After 10 cycles, the battery cycled at RT and 45 °C showed, the capacity fade of 20% and 25% respectively. The discharge capacity for the battery cycled at 25 °C was found to be higher when compared with the battery cycled at 0 °C and 45 °C. The capacity of the battery also decreases when cycling at low temperatures. It was important time to charge the battery was only 2.5 hours to obtain identical nominal capacity under the charging protocol. The decrease capability of battery cycled at high temperature can be explained with secondary active material loss dominating the other losses.</p>


2015 ◽  
Vol 51 (24) ◽  
pp. 5120-5123 ◽  
Author(s):  
Jessica L. Durham ◽  
Kevin Kirshenbaum ◽  
Esther S. Takeuchi ◽  
Amy C. Marschilok ◽  
Kenneth J. Takeuchi

A new paradigm for concomitant control of crystallite size and composition of bimetallic (AgxFeO2) composites increases lithium battery capacity ∼200%.


2021 ◽  
Vol MA2021-01 (1) ◽  
pp. 65-65
Author(s):  
Saurabh Saxena ◽  
Logan Ward ◽  
Joseph Kubal ◽  
Hong-Keun Kim ◽  
Wenquan Lu ◽  
...  

2002 ◽  
Vol 756 ◽  
Author(s):  
Shoufeng Yang ◽  
Peter Y. Zavalij ◽  
M. Stanley Whittingham

ABSTRACTIn order to better understand the cycling mechanism of metal alloy anodes, and to mitigate the capacity fade observed in lithium battery use a study of simple systems was initiated. Tin foil and tin-bismuth mixtures were chosen because there is no need for conductive diluents or binders so that the intrinsic behavior could be observed. A pure tin foil was found to react rapidly with lithium, ≥ 3 mA/cm2, and with no capacity fade for over 10 cycles. This is better than tin powder or electrodeposited tin. After the first cycle, the foil reacts with Li following a stepwise formation of different alloys as dictated by the thermodynamics. Incorporation of bismuth into the foil increased the capacity fade after the first few cycles, with the eutectic composition Sn0.57Bi0.43 having better capacity retention than the Sn0.5Bi0.5 composition. XRD and SEM-EDS shows that bismuth is rejected from the tin rich phase during lithium insertion and is not reincorporated on lithium removal, just as expected from the phase diagram.


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