Bipolar electrodes containing flame-resistant quasi-solid or solid-state electrolyte, bipolar lithium batteries, and manufacturing method

A bipolar electrode for a lithium battery, wherein said bipolar electrode comprises:

• a) A current collector comprising a conductive material foil having a thickness from 10 nm to 100 μm and two opposing primary surfaces, wherein one or both of the primary surfaces is coated with a layer of graphene or expanded graphite material having a thickness from 1 nm to 50 μm;
• and
• b) a negative electrode layer and a positive electrode layer respectively disposed on the two primary surfaces, each in physical contact with said layer of graphene or expanded graphite material or in direct contact with a primary surface of said conductive material foil, wherein the positive electrode layer comprises a mixture of particles of a cathode active material and a quasi-solid or solid-state electrolyte and the electrolyte comprises a polymer, which is a polymerization or crosslinking product of a reactive additive, wherein the reactive additive comprises (i) a first liquid solvent that is polymerizable, (ii) an initiator or curing agent, and (iii) a lithium salt, wherein the first liquid solvent occupies from 1% to 99% by weight of the total weight of the reactive additive.