Karim Zaghib

Abstract:

HQ-CNRS started work on lithium metal with polymer electrolyte in lithium rechargeable batteries in 1979. Since that time, battery research has expanded worldwide. Several new polymers, solid electrolytes and ionic liquids with improved conductivity have resulted from a better understanding of the major parameters controlling ion migration, such as favorable polymer structure, phase diagram between solvating polymer and lithium salt, and the development of new lithium counter-anions. In spite of the progress so far, the quest for a highly conductive dry polymer at room temperature is still continuing and all-lithium polymer battery (LPB) developers presently face the challenge of whether to heat the PEO-based polymer electrolyte to enable high-power performance, as required for electric vehicle and energy storage or develop a polymer electrolytes conductive at RT. LPB developers have explored both the high-temperature and low-temperature options.
This presentation provides an overview and progress in developing three battery technologies:
1. Lithium-metal-based batteries made from dry polymer and ionic liquid-polymer electrolytes for rechargeable lithium batteries with olivine (LFP and LMFP).
2. All solid-state batteries using Li°-NMC.
3. High voltage composite polymer- ceramic for all solid state batteries.
We compare the performances the energy density, the cost, and safety of li-ion batteries vs. solid state batteries. In this presentation we will explain the process from materials to the system (cell, module and pack).