By Dr. Khalil Amine, distinguished Fellow and manager of the Advanced Lithium Battery Technology program at Argonne National Laboratory, IL, USA.
To meet the high-energy requirement that can enable the 40-miles electric drive Plug-in Hybrid Electric Vehicle (P-HEVs), long range electric vehicle (EV) and smart grid, it is necessary to develop very high energy and high-power cathodes and anodes that when combined in a battery system must offer 5,000 charge-depleting cycles, 15years calendar life as well as excellent abuse tolerance. These challenging requirements make it difficult for conventional battery systems to be adopted in P-HEVs and EVs. In this talk, we will present a next generation lithium-ion battery that include a) new advanced PDOT conductive polymer coating on NMC cathode to stabilize the system at high voltage, b) a Ni rich full gradient cathode that provides outstanding cycle life and excellent abuse tolerance c) a high voltage and nonflammable electrolyte and d) Silicon-graphene composite anode including a novel pre-lithiation technology to overcome the irreversible loss of this anode in the first cycle. We will then show how Se doping of Sulfur (S) can overcome the conductivity issue of Sulfur and eliminate the dissolution of poly-sulfide using an advanced electrolyte system. We will finish by showing that by incorporating Li2S in graphene cages, we increase the electrode loading significantly to over 10mg.cm-2 and eliminate the issue of cathode swelling and the use of Lithium metal that impact performance.
Co-authors: Khalil Amine; Jun Lu; Guiliang Xu, Zonghai Chen, Chi-Cheung Su, and Larry Curtiss
Argonne National Laboratory, USA
Dr. Khalil Amine is an Argonne Distinguished Fellow and the leader of the Advanced Battery Technology team at Argonne National Laboratory, where he is responsible for directing the research and development of advanced materials and battery systems for HEV, PHEV, EV, grid, satellite, military and medical applications. Dr. Amine is also the Deputy Director of the US/China clean energy research center and serves as a committee member of the U.S. National Research Consul at US Academy of Sciences on battery related technologies. He is an adjunct professor at Stanford University, and Hong Kong University of science and technology. Among his many awards, Dr. Amine is a 2003 recipient of Scientific America’s Top Worldwide 50 Researcher Award, a 2008 University of Chicago distinguished scientist award, a 2009 recipient of the US Federal Laboratory Award for Excellence in Technology Transfer, 2013 DOE Vehicle technologies office award and is the five-time recipient of the R&D 100 Award, which is considered as the Oscar of technology and innovation. In addition, he was awarded the ECS battery technology award, the international battery association award, the Elsevier technology award, the international coalition for energy storage and innovation award and more recently the ECS battery research award and the prestigious global energy Prize. Dr. Amine holds over 198 patents and patent applications and has 558 publications with google h-index of 113. From 1998-2018, Dr. Amine was the most cited scientist in the world in the field of battery technology. He serves as the president of IMLB. He is also the chairmen of the international automotive lithium battery association, ECS fellow, Fellow of Hong Kong Institute of advanced studies, and associate editor of the journal of Nano-Energy.