Provided are a precursor solution and a modified layer and a lithium-based battery
comprising the same. The modified layer is formed on the negative electrode, the
positive electrode or the separator of the lithium-based battery by photo-polymerization
reaction or thermal curing of the precursor solution. The lithium-based battery
comprising the modified layer can promote the rate-capability, cycle life, and safety.
The modified layer is applicable to a roll-to-roll process. The formation of lithium
dendrites in the lithium-based battery comprising the modified layer is significantly
suppressed or reduced during the charge-discharge cycling process. In the
embodiments of the lithium sulfur battery and lithium iodine battery, the shuttle effect
is effectively suppressed or reduced. All the above effects are beneficial to increasing the product values of lithium ion battery, lithium metal battery, anode-free lithium
battery, lithium sulfur battery, and lithium iodine battery. |