Preparation method of polysulfide hydroxylated grapheme nano-composite (lithium ion rechargeable battery)

The invention discloses a preparation method of a polysulfide hydroxylated grapheme nano-composite (lithium ion rechargeable battery). According to the lithium ion rechargeable battery, the polysulfide hydroxylated grapheme nano-composite is adopted as cathode electrochemical reaction active substance of the cathode, the anode is prepared from mixture of grapheme embedded with lithium metal, and powdered graphite, and a diaphragm adopts spongy sulfated polymer composite membrane.