TY - JOUR
T1 - Scalable process for application of stabilized lithium metal powder in Li-ion batteries
AU - Ai, Guo
AU - Wang, Zhihui
AU - Zhao, Hui
AU - Mao, Wenfeng
AU - Fu, Yanbao
AU - Yi, Ran
AU - Gao, Yue
AU - Battaglia, Vincent
AU - Wang, Donghai
AU - Lopatin, Sergey
AU - Liu, Gao
N1 - Funding Information:
This work is funded by the Assistant Secretary for Energy Efficiency, Office of Vehicle Technologies of the U.S. Department of Energy (U.S. DOE) under the Advanced Battery Materials Research (BMR) program, along with the National Center for Electron Microscopy of the Molecular Foundry and the Advanced Light Source at the Lawrence Berkeley National Laboratory, which are supported by the U.S. Department of Energy under Contract # DE-AC02-05 CH11231 . Guo Ai is supported by the funding from the Distinguished Young Scientist Program of Guangdong Province ( 2015A030306002 ) and the China Scholarship Council . Ziyan Zheng (University of California, Berkeley) provided comments and modifications to the manuscript.
PY - 2016/3/31
Y1 - 2016/3/31
N2 - A simple solution processing method is developed to achieve a uniform and scalable stabilized lithium metal powder (SLMP) coating on a Li-ion negative electrode. A solvent and binder system for the SLMP coating is developed, including the selection of solvent, polymer binder, and optimization of polymer concentration. The optimized binder solution is a 1% concentration of polymer binder in xylene; a mixture of poly(styrene-co-butadiene) rubber (SBR) and polystyrene (PS) is chosen as the polymer binder. Results show that long-sustained, uniformly dispersed SLMP suspension can be achieved with the optimized binder solution. The uniform SLMP coating can be achieved using a simple "doctor blade" coating method, and the resulting SLMP coating can be firmly glued on the anode surface. By using SLMP to prelithiate the negative electrode, improvements in electrochemical performances are demonstrated in both graphite/NMC and SiO/NMC full cells.
AB - A simple solution processing method is developed to achieve a uniform and scalable stabilized lithium metal powder (SLMP) coating on a Li-ion negative electrode. A solvent and binder system for the SLMP coating is developed, including the selection of solvent, polymer binder, and optimization of polymer concentration. The optimized binder solution is a 1% concentration of polymer binder in xylene; a mixture of poly(styrene-co-butadiene) rubber (SBR) and polystyrene (PS) is chosen as the polymer binder. Results show that long-sustained, uniformly dispersed SLMP suspension can be achieved with the optimized binder solution. The uniform SLMP coating can be achieved using a simple "doctor blade" coating method, and the resulting SLMP coating can be firmly glued on the anode surface. By using SLMP to prelithiate the negative electrode, improvements in electrochemical performances are demonstrated in both graphite/NMC and SiO/NMC full cells.
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U2 - 10.1016/j.jpowsour.2016.01.061
DO - 10.1016/j.jpowsour.2016.01.061
M3 - Article
AN - SCOPUS:84956923624
SN - 0378-7753
VL - 309
SP - 33
EP - 41
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
