Lithium iron vanadium phosphate battery.12v 100ah deep cycle battery

　　The chemical formula of the positive electrode material is: LiFe1-xV (M) xPO4, with an atomic ratio of Li/(Fe+V (M))=1-1.1, Fe/P=1, Fe/V (M)=30-99, where V (M) x is vanadium and modified element, X=0.01-1. The preparation method is to dissolve the vanadium element in soft water, presintering, crushing, and uniformly mixing with lithium source, iron source, phosphorus source, and polymer compound additives of other modified elements under the protection of inert atmosphere for pyrolysis, burning, cooling, ball milling, and sieving to obtain lithium iron vanadium phosphate cathode material.

　　The chemical formula of the positive electrode material is: LiFe1-xV (M) xPO4, with an atomic ratio of Li/(Fe+V (M))=1-1.1, Fe/P=1, Fe/V (M)=30-99, where V (M) x is vanadium and modified element, X=0.01-1. The preparation method is to dissolve the vanadium element in soft water, presintering, crushing, and uniformly mixing with lithium source, iron source, phosphorus source, and polymer compound additives of other modified elements under the protection of inert atmosphere for pyrolysis, burning, cooling, ball milling, and sieving to obtain lithium iron vanadium phosphate cathode material. The preparation conditions are simple, safe and low cost. The modified additive can effectively control the morphology and crystal structure of lithium iron vanadium phosphate, improve the conductivity of the product, and has the advantages of stable structure, high specific capacity, good high-temperature performance, excellent cycling performance and low cost.

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