Intercalated composite material used for manufacturing rechargeable battery electrode and preparation method of intercalated composite material
A composite material and rechargeable battery technology, applied in battery electrodes, electrode manufacturing, circuits, etc., can solve the problems of inappropriate application in large areas, time-consuming and laborious preparation, and achieve excellent electrical conductivity and photocatalytic performance, easy implementation, and reasonable preparation. Effect
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[0014] figure 1 It is a process step diagram of the preparation method of the intercalation composite material used to make the electrode of the rechargeable battery according to the embodiment of the present invention; the intercalation composite material is composed of nano-titanium oxide and graphene oxide, and the preparation method includes the following steps: a) preparing Graphene oxide, b) preparation of titanium sulfate solution, c) mixing reaction and molding treatment.
[0015] The intercalation composite material used to make the electrode of the rechargeable battery mentioned in the present invention is prepared by using graphite oxide and titanium sulfate as the initial reactants. During the preparation, the single-layer and multi-layer graphite oxide mixture after the alkali solution is stripped is used as the load. The titanium oxide ion groups generated by the hydrolysis of titanium sulfate diffuse into the graphene oxide layer through electrostatic attraction...
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[0017] The specific preparation method is as follows:
[0018] a) To prepare graphene oxide, firstly carry out the purification of graphite, the specific purification process is: first add a certain amount of graphite into 30wt% sodium hydroxide solution, stir evenly, melt and react at 450°C for 1 hour; then cool naturally , washed with deionized water and filtered until neutral; then the graphite was soaked in concentrated hydrochloric acid for 1 hour, washed with deionized water and filtered until neutral; finally dehydrated and dried in a drying oven at 200°C to obtain purified graphite. Then put the purified graphite, sodium nitrate, and concentrated sulfuric acid into a mixing container placed in an ice-water bath, stir continuously, and then gradually add potassium permanganate, and the whole cooling process in the ice-water bath lasts for 2 hours. Among them, the purified graphite, sodium nitrate, concentrated The mass ratio of sulfuric acid and potassium permanganate i...
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