The invention belongs to the field of production of
lithium ion batteries, in particular to a production process of a waterborne positive
lithium ion battery. The production process comprises the following steps of: preparing an
anode and a
cathode,
coating on the
anode and the
cathode, flaking, baking, preparing an electric core, testing
short circuit, baking, putting a lower spacer into a shell,
welding a bottom, putting an upper spacer and folding a positive lug, rolling a slot and testing
short circuit; and injecting liquid, wiping the positive lug,
welding the positive lug with a cover plate, folding the cover plate for covering, sealing, cleaning, standing, performing formation, standing and performing capacity grading. The
anode comprises the following components in parts by weight: 100 parts of
lithium iron phosphate, 3-4 parts of super conductive
carbon black, 2-3 parts of conductive
graphite, 3.5-4 parts of waterborne
adhesive, 2.5-3 parts of NMP (N-methylpyrrolidone) and 80-85 parts of deionized water and is prepared by the following steps of: mixing the waterborne
adhesive, the NMP and the deionized water; adding other raw materials; and stirring to obtain anode
slurry. Compared with the conventional oily process of the
lithium ion battery, the production process has the advantages of low
energy consumption, high production efficiency, low product cost and the like.