Extreme Fast Charging Capability in Graphite Anode via a Lithium Borate Type Biobased Polymer as Aqueous Polyelectrolyte Binder
is focused on the design of active materials and improved mass transfer of electrolytes, the current study provides a different approach via the design of specific binder material which promotes lithium-ion intercalation of the active material. “The binder material includes highly dissociable lithium borate, which improves lithium-ion diffusion in the anode matrices.
Generally, when charging surpasses rate of intercalation, Li plating occurs on graphite electrodes. It is an undesired process leading to reduced battery life and limiting fast charge capability. In this study, the improved diffusion of ions across the SEI and within the electrodes limits the concentration polarization of Li+ ions — leading to the absence of plating on graphite.
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