Chunmei Ban is a senior scientist at NREL. Her Ph.D. from the State University of New York at Binghamton focused on Materials Science and was supervised by Prof. M. Stanley Whittingham.
During the past 10 years, Chunmei has worked on a variety of electrochemical energy storage systems, including lithium-ion batteries, lithium-air batteries, organic radical batteries, and magnesium-ion batteries. The focus of her current research is developing functional materials including composite, hybrid, and nanostructured materials for electrochemical energy storage systems.
During her research work at NREL, Chunmei has published more than 40 papers in prestigious journals and has been invited to present her research at universities and international conferences, including the Materials Research Society and American Chemistry Society. Since 2010, she has been a principal investigator on DOE-awarded projects.
Progress toward a commercially viable silicon anode for lithium-ion batteries has been impeded by silicon’s rapid capacity fade caused by large volumetric expansion and unstable solid-electrolyte interphases. This study focuses on developing unique coating chemistries to stabilize the surface of silicon electrodes via molecular layer deposition (MLD), as well as to accommodate volume changes during electrochemical reactions. This research elucidates the significance of surface modification for high-energy battery materials with large volume changes, and also provides information for a new design of surface coatings for electrode materials, with the aim of achieving durable, high-energy-density lithium-ion batteries.
Ph.D. Chemistry, State University of New York at Binghamton
M.S. Electrochemistry, Tianjin University, China
B.A. Electrochemistry, Tianjin University, China
C. Ban, S.M. George, “Molecular layer deposition for surface modification in Li-ion batteries,” Adv. Mater. Interface, 2016, 1600762, DOI: 10.1002/admi.201600762
T. Evans, D.M. Piper, H. Sun, T. Porcell, S.C. Kim, S.S. Han, Y.S. Choi, C. Tian, D. Nordlund, M. Doeff, C. Ban, S.J. Cho, K.H. Oh, S.H. Lee, “In situ engineering of the electrode-electrolyte interface for stabilized overlithiated cathodes,” Adv. Mater. 2017, 1604549, DOI: 10.1002/adma.201604549
D.M. Piper, Y. Lee, S-B. Son, T. Evans, F. Lin, D. Nordlund, X. Xiao, S.M. George, S.H. Lee, C. Ban, “Cross-linked aluminum dioxybenxene coating for stabilization of silicon electrodes,” Nano Energy, 2016, 22, pp 202–210, DOI: 10.1016/j.nanoen.2016.02.021
X. Li, C.A. Wolden, C. Ban, Y. Yang, “Facial synthesis of lithium sulfide nanocrytals for use in advanced rechargeable batteries,” ACS App. Mater. Interfaces, 2015, 7(51), 28444-51, DOI: 10.1021/acsami.5b09367
A.M. Wise, C. Ban, J.N. Weker, S. Misra1, A.S. Cavanagh, Z. Wu, Z. Li, M.S. Whittingham, K. Xu, S.M. George, M.F. Toney, “The effect of Al2O3 coating on stabilizing LiNi0.4Mn0.4Co0.2O2 cathodes,” Chem. Mater., 2015, 27(17), pp 6146–6154, DOI: 10.1021/acs.chemmater.5b02952
L. Luo, H. Yang, P. Yang, J. Travis, Y. Lee, N. Liu, D.M. Piper, S.H. Lee, P. Zhao, S.M. George, J.G. Zhang, Y. Cui, S. Zhang, C. Ban, C. Wang, “Surface-coating regulated lithiation kinetics and degradation in silicon nanowires for lithium ion battery,” ACS Nano, 2015, 9(5), pp 5559–5566, DOI: 10.1021/acsnano.5b01681
Y. He, D. Piper, M. Gu, J. Travis, S. George, S. Lee, A. Genc, L. Pullan, J. Liu, S. Mao, J. Zhang, C. Ban, C. Wang, “In-situ TEM investigation of the effect of native oxide and molecular layer deposited coating on silicon nanoparticles for lithium ion battery anodes,” ACS Nano, 2014, 8(11), pp 11816–11823, DOI: 10.1021/nn505523c
D.M. Piper, S-B. Son, J.J. Travis, Y. Lee, S.S. Han, S.C. Kim, K.H. Oh, S. George, S.H. Lee, C. Ban, “Mitigating irreversible capacity losses from carbon agents via surface modification,” J. Power Sources, 2014, DOI:10.1016/j.jpowsour.2014.11.032
F. Lin, D. Nordlund, T.-C. Weng, Y. Zhu, C. Ban, R.M. Richards, H.L. Xin, “Phase evolution for conversion reaction electrodes in lithium-ion batteries,” Nature Commun., 2014, 5, 3358.
D.M. Piper, J.J. Travis, M. Young, S-B. Son, S.C. Kim, K.H. Oh, S. George, C. Ban, S.H. Lee, “Reversible high capacity Si nanocomposite anodes for lithium-ion batteries enabled by molecular layer deposition,” Adv. Mater., 2013, 26(10), 1596.