The Experts below are selected from a list of 150498 Experts worldwide ranked by ideXlab platform
J P Zheng - One of the best experts on this subject based on the ideXlab platform.
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the effect of lithium loadings on anode to the voltage drop during charge and discharge of li ion capacitors
Journal of Power Sources, 2015Co-Authors: Michael Greenleaf, Y X Li, Daniel Lawrence Adams, M Hagen, T Doung, J P ZhengAbstract:Abstract The IR voltage drop from the anode and cathode of Li-ion capacitors during charge and discharge was studied. Li-ion capacitors were made with activated carbon cathode and hard carbon anode with different loadings of stabilized lithium Metal Powder (SLMP). It was found that the LICs with high SLMP loadings showed smaller voltage drop than LICs with low SLMP loadings. It was also found that at low SLMP loadings, the IR voltage drops at high cell voltages were smaller than that at low cell voltages; while at high SLMP loadings, small IR voltage drops were obtained for both low and high cell voltages. The electrochemical impedance spectroscopy confirmed that voltage drops are directly related to the internal resistances of Li-ion capacitors.
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li ion capacitors with carbon cathode and hard carbon stabilized lithium Metal Powder anode electrodes
Journal of Power Sources, 2012Co-Authors: Wanju Cao, J P ZhengAbstract:Abstract A lithium-ion capacitor was developed using a mixture of stabilized lithium Metal Powder and hard carbon as the anode electrode, while activated carbon was used as the cathode. A specific energy of approximately 82 Wh kg−1 was obtained based on the weight of electrode materials; however, when the electrolyte, separator, and current collectors were included, the specific energy of an assembled Li-ion capacitor was about 25 Wh kg−1. The capacitor was able to deliver over 60% of the maximum energy at a discharge C-rate of 44C. Through continuous galvanostatic charge/discharge cycling, the capacitance of the Li-ion capacitor degraded less than 3% over 600 cycles.
Gao Liu - One of the best experts on this subject based on the ideXlab platform.
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application of stabilized lithium Metal Powder slmp in graphite anode a high efficient prelithiation method for lithium ion batteries
Journal of Power Sources, 2014Co-Authors: Zhihui Wang, Zhengcheng Zhang, Shengwe Yua, Khalil Amine, Vince Attaglia, Gao LiuAbstract:Abstract Stabilized Lithium Metal Powder (SLMP®) was applied in graphite anode and the effects of this prelithiation method to cell performance were investigated. Performance of prelithiated cells was compared with that of regular graphite based cells. The first cycle capacity loss of SLMP prelithiated cell was largely reduced and the corresponding first cycle Coulombic efficiency was significantly improved. The graphite/NMC cell with SLMP prelithiation but without any standard cell formation process showed better cycle performance than that of none SLMP containing cell with standard formation process. Prelithiation of graphite electrode with SLMP promote stable solid electrolyte interface (SEI) formation on the surface of graphite anode. Application of SLMP in lithium-ion battery thus provides an effective method to enhance capacity, and promises a low cost SEI formation process. This also implies the potential use of other promising anode materials, such as Si and Sn that have large first cycle capacity loss, in commercial lithium-ion batteries.
Brian J Landi - One of the best experts on this subject based on the ideXlab platform.
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Prelithiation of silicon-carbon nanotube anodes for lithium ion batteries by stabilized lithium Metal Powder (SLMP)
Nano Letters, 2013Co-Authors: Michael W. Forney, Jason W. Staub, Matthew J. Ganter, Brian J LandiAbstract:Stabilized lithium Metal Powder (SLMP) has been applied during battery assembly to effectively prelithiate high capacity (1500-2500 mAh/g) silicon-carbon nanotube (Si-CNT) anodes, eliminating the 20-40% first cycle irreversible capacity loss. Pressure-activation of SLMP is shown to enhance prelithiation and enable capacity matching between Si-CNT anodes and lithium nickel cobalt aluminum oxide (NCA) cathodes in full batteries with minimal added mass. The prelithiation approach enables high energy density NCA/Si-CNT batteries achieving >1000 cycles at 20% depth-of-discharge.
Wanju Cao - One of the best experts on this subject based on the ideXlab platform.
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li ion capacitors with carbon cathode and hard carbon stabilized lithium Metal Powder anode electrodes
Journal of Power Sources, 2012Co-Authors: Wanju Cao, J P ZhengAbstract:Abstract A lithium-ion capacitor was developed using a mixture of stabilized lithium Metal Powder and hard carbon as the anode electrode, while activated carbon was used as the cathode. A specific energy of approximately 82 Wh kg−1 was obtained based on the weight of electrode materials; however, when the electrolyte, separator, and current collectors were included, the specific energy of an assembled Li-ion capacitor was about 25 Wh kg−1. The capacitor was able to deliver over 60% of the maximum energy at a discharge C-rate of 44C. Through continuous galvanostatic charge/discharge cycling, the capacitance of the Li-ion capacitor degraded less than 3% over 600 cycles.
Zhihui Wang - One of the best experts on this subject based on the ideXlab platform.
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application of stabilized lithium Metal Powder slmp in graphite anode a high efficient prelithiation method for lithium ion batteries
Journal of Power Sources, 2014Co-Authors: Zhihui Wang, Zhengcheng Zhang, Shengwe Yua, Khalil Amine, Vince Attaglia, Gao LiuAbstract:Abstract Stabilized Lithium Metal Powder (SLMP®) was applied in graphite anode and the effects of this prelithiation method to cell performance were investigated. Performance of prelithiated cells was compared with that of regular graphite based cells. The first cycle capacity loss of SLMP prelithiated cell was largely reduced and the corresponding first cycle Coulombic efficiency was significantly improved. The graphite/NMC cell with SLMP prelithiation but without any standard cell formation process showed better cycle performance than that of none SLMP containing cell with standard formation process. Prelithiation of graphite electrode with SLMP promote stable solid electrolyte interface (SEI) formation on the surface of graphite anode. Application of SLMP in lithium-ion battery thus provides an effective method to enhance capacity, and promises a low cost SEI formation process. This also implies the potential use of other promising anode materials, such as Si and Sn that have large first cycle capacity loss, in commercial lithium-ion batteries.
