Germanium and barium activated lithium iron phosphate anode material
A technology for lithium iron phosphate and positive electrode materials, which can be used in battery electrodes, electrical components, circuits, etc., and can solve problems such as poor conductivity and low tap density
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Embodiment 1
[0026]Li2CO3 (99.73%), GeO2 (99.8%), BaCO3 (99.8%), FeC2O4.2H2O (99.06%), NH4H2PO4 (98%) raw materials, according to 1mol Li: 0.00002mol Ge: 0.0003mol Ba: 1mol Fe: 1mol P After proportional mixing, high-speed ball milling (rotating speed 200r / min) in absolute ethanol (AR) medium for 20h. After drying at 105-120°C, the precursor is obtained, and the dried precursor is placed in a high-temperature furnace, and calcined at 500-750°C for 24 hours in an ordinary pure nitrogen (>99.5%) atmosphere. That is, the germanium and barium activated lithium iron phosphate cathode material of the present invention is obtained.
Embodiment 2
[0028] Li2CO3 (99.73%), GeO2 (99.8%), BaCO3 (99.8%), FeC2O4.2H2O (99.06%), NH4H2PO4 (98%) raw materials, according to 1mol Li: 0.00004mol Ge: 0.001mol Ba: 1mol Fe: 1mol P After proportional mixing, high-speed ball milling (rotating speed 200r / min) in absolute ethanol (AR) medium for 20h. After drying at 105-120°C, the precursor is obtained, and the dried precursor is placed in a high-temperature furnace, and calcined at 500-750°C for 24 hours in an ordinary pure nitrogen (>99.5%) atmosphere. That is, the germanium and barium activated lithium iron phosphate cathode material of the present invention is obtained.
Embodiment 3
[0030] Li2CO3 (99.73%), GeO2 (99.8%), BaCO3 (99.8%), FeC2O4.2H2O (99.06%), NH4H2PO4 (98%) raw materials, according to 1mol Li: 0.00005mol Ge: 0.003mol Ba: 1mol Fe: 1mol P After proportional mixing, high-speed ball milling (rotating speed 200r / min) in absolute ethanol (AR) medium for 20h. After drying at 105-120°C, the precursor is obtained, and the dried precursor is placed in a high-temperature furnace, and calcined at 500-750°C for 24 hours in an ordinary pure nitrogen (>99.5%) atmosphere. That is, the germanium and barium activated lithium iron phosphate cathode material of the present invention is obtained.
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