NOVELTY - The method comprises: fabricating (S1) a core device; placing (S2) the core device in a bag, and injecting a reactive electrolyte into the bag; pre-charging (S3) the core device and the reactive electrolyte in the bag; performing (S4) a heat drying process on the bag to cause a colloid formation and aging of the reactive electrolyte; performing (S5) an activation procedure on the core device and the reactive electrolyte in the bag; and completing the gel lithium battery. The reactive electrolyte comprises a liquid electrolyte, a polymer monomer and an initiator.    USE - The method is useful for manufacturing a gel lithium battery (claimed) that is useful in a portable electronic device such as mobile phone, portable computer, tablet computer and MPEG-1 audio layer III (MP3) players.    ADVANTAGE - The method is capable of simply and cost-effectively manufacturing the gel lithium battery with enhanced quality and life cycle and high stability.    DETAILED DESCRIPTION - The method comprises: fabricating (S1) a core device; placing (S2) the core device in a bag, and injecting a reactive electrolyte into the bag; pre-charging (S3) the core device and the reactive electrolyte in the bag; performing (S4) a heat drying process on the bag to cause a colloid formation and aging of the reactive electrolyte; performing (S5) an activation procedure on the core device and the reactive electrolyte in the bag; and completing the gel lithium battery. The reactive electrolyte comprises a liquid electrolyte, a polymer monomer and an initiator. A weight ratio of the liquid electrolyte, the polymer monomer and the initiator is 50-98.9%:1-49.9%:0.1-5%. The initiator is an initiator having free radicals. The reactive electrolyte comprises a set of micellar units, each of which comprises an electrolytic micro-droplet and a set of surfactant monomers adhered to a surface of the electrolytic micro-droplet. Each of the micellar units further comprises a set of polymer monomers formed in an interlinking structure surrounding peripheries of the surfactant monomers. The placing step comprises placing the core device and the reactive electrolyte for 6-72 hours to allow the reactive electrolyte to be evenly distributed on the core device after injecting the reactive electrolyte. The pre-charging step comprises pre-charging the core device and the reactive electrolyte till reaching 40-80% of a total cell capacity. The heat drying process performing step comprises controlling a heat drying temperature at 60-80 degrees C for 10 minutes to 9 hours. The activation procedure performing step comprises charging the core device and the reactive electrolyte till the core device and the reactive electrolyte are fully charged. The performing steps further comprise sucking air out of the bag until the bag is vacuum to complete shaping.    DESCRIPTION OF DRAWING(S) - The figure shows a flow diagram of a method for manufacturing a gel lithium battery.    Fabricating a core device (S1)    Placing the core device in a bag (S2)    Pre-charging the core device and the reactive electrolyte in the bag (S3)    Performing a heat drying process (S4)    Performing an activation procedure. (S5)