Crosslinked Lithium Battery Anode for Spring-Back Suppression

The patent applies preliminary action by incorporating a thermal crosslinking additive into the anode mixture layer before electrode formation. This additive undergoes thermal crosslinking during battery manufacturing processes (such as drying or forming), creating a crosslinked binder network that pre-establishes dimensional stability. This preliminary structural reinforcement prevents spring back phenomenon during subsequent manufacturing steps, enabling precise thickness control even when electrodes are manufactured at reduced thickness for high energy density applications.

The patent applies composite materials by creating a composite binder system consisting of a base binder and a thermal crosslinking additive. This composite formulation, where the additive crosslinks with the binder upon heating, generates a reinforced three-dimensional network structure within the anode mixture layer. This composite structure significantly enhances the mechanical strength and dimensional stability of thin electrodes, preventing damage during manufacturing processes while enabling minimized cell volume through reduced electrode thickness.

The patent applies parameter changes by introducing a thermal crosslinking additive that undergoes chemical transformation when exposed to heat during standard battery manufacturing processes. This parameter change (thermal activation) triggers crosslinking reactions that significantly enhance electrode adhesion and structural stability. The approach maintains manufacturing simplicity because the crosslinking occurs passively during existing process steps (drying, forming, or initial charging), without requiring additional equipment or complex process modifications, yet achieves superior adhesion strength compared to conventional binders.