By Dr. Jun Liu, Pacific Northwest National Laboratory, Richland, Washington, USA.
Li-ion batteries play a critical rule in modern day technologies, but their energy density is rapidly approaching the maximum practically achievable value based on the known cathode and anode materials. Developing the next generation lithium batteries with an energy density significantly higher than 300 Wh/kg, and costs less than $100/kWh, is a significant challenge for the scientific community. This seminar will discusses the requirements and practical technical approaches we identified to address this grand challenge. In particular, we will discuss the detailed cell level requirements and parameters for next generation Li-S, high Li- Ni NMC and redox battery systems, and the scientific challenges and approaches, including, enabling direct utilization of lithium metal anode with high efficiency, dendrite free lithium metal deposition, high utilization of the cathode materials with high active materials loading and minimum waste, and cell level optimization of validation of the materials properties and control of interfaces reactions across the whole cells. New concepts in emerging multifunctional materials and electrolytes will also be discussed.
Jun Liu is a Battelle Fellow at the Pacific Northwest National Laboratory (PNNL). He also serves as the Director for the Innovation Center for Battery500 Consortium, a multi-institute program supported by the US Department of Energy. In the past, Jun served as the Division Director for the Energy Processes and Materials Division at PNNL, the Crosscutting Science Lead Scientist for the Joint Center for Energy Storage Research (JCESR), Thrust Lead for the Complex Materials for the Integrated Center for Nanotechnologies (CINT), and Department Manager for Nanomaterials and Chemistry at Sandia National Laboratories. Jun is among the top 1% highest cited researchers in materials, chemistry and engineering. He has more than 400 peer reviewed technical publications and more than 50 issued US patents. He has twice received the R&D100 Awards, the ECS Battery Division Technology Award, and has been named Battelle Distinguished Inventor, and PNNL Inventor of the Year.