41 results about "Paper battery" patented technology

The invention provides a liquid active magnesium-cuprous chloride paper battery and a preparation method thereof. The magnesium-cuprous chloride paper battery is composed of the following successively laminated components: a magnesium negative electrode, fiber paper having absorbed an electrolyte, diaphragm paper coated with CuCl active slurry and a carbon current collector. The preparation method comprises the following steps: passivating the magnesium negative electrode and preparing the electrolyte with a magnesium salt concentration of 0.1 to 1.0 M and a corrosion inhibitor concentration of 0.02 to 0.06 M; dipping the fiber paper in the electrolyte and then drying the fiber paper at a temperature of 40 to 50 DEG C for subsequent usage; mixing CuCl, a conductive agent and an additive according to a mass ratio of 80-90: 10-20: 0.1-1, carrying out ball milling to obtain CuCl mixed powder, then weighing a certain amount of the CuCl mixed powder, adding deionized water into the weighed CuCl mixed powder to prepare the CuCl active slurry, then coating the CuCl active slurry on the surface of the diaphragm paper and drying the diaphragm paper at a temperature of 30 to 40 DEG C for subsequent usage; and successively superposing a layer of absorbent paper having absorbed the electrolyte, the diaphragm paper coated with the CuCl active slurry and the carbon current collector on the surface of the magnesium electrode, leading out positive and negative wires and carrying out vacuum packaging with a plastic film. The liquid active magnesium-cuprous chloride paper battery provided by the invention has excellent storage performance and does not lose efficacy after long-term storage, and the voltage of a battery cell reaches 1.8 to 2.0 V.

The invention provides a coating material used for a paper electrode, the paper electrode produced by the coating material, and a paper battery. A graphene conducting paper is prepared by a carbon material, a paper pulp and an auxiliary agent with mass ratio of 5-10: 34-57: 6-9; wherein the nano carbon material at least comprises graphene, and the auxiliary agent is one or more selected from modified starch, anionic polyacrylamide, polyvinyl alcohol and carboxymethyl cellulose. The coating material used in the field of the paper battery has the advantages of increasing specific capacity, increasing stable battery performance, and increasing the battery life.

The invention relates to a liquid activated zinc manganese paper battery and a preparation method of the battery; the liquid activated zinc manganese paper battery is formed by sequentially laminating a zinc cathode, a piece of fiber paper absorbed with electrolyte, a piece of coated layer paper coated with MnO2 active slurry, and a carbon collector; the preparation method comprises the steps of: preparing the electrolyte according to the mass ratio of ZnCl2 to NH4Cl to CaCl2 of (5-30): (5-50): (3-10); soaking the fiber paper into the electrolyte, and drying at 40-50 DEG C for later use; firstly mixing MnO2, a conductive agent and an additive according to the mass ratio of (80-90): (10-20): (0.1-1.0), then carrying out ball-milling to obtain MnO2 mixed powder; adding deionized water into the MnO2 mixed powder to prepare the MnO2 active slurry, then blade coating the MnO2 active slurry onto the surface of the coated layer paper, and drying at 40-50 DEG C for later use; sequentially overlying the fiber paper absorbed with the electrolyte, the coated layer paper coated with the MnO2 active slurry and the carbon collector on the surface of the zinc foil cathode, and leading out a positive pole lead and a negative pole lead; and finally, carrying out vacuum encapsulation by a plastic film. The battery disclosed by the invention is excellent in storage performance and can be stored for a long time without becoming invalid; and the voltage of the single battery reaches 1.5-1.6V.