Phosphorous boron doped lithium manganese phosphate/carbon composite material and preparation method thereof

A carbon composite material, lithium manganese phosphate technology, applied in phosphorus compounds, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as low activity, improve discharge capacity, improve electrochemical response speed, and reduce material polarization Effect
CN102931404BInactive Publication Date: 2015-10-28FUDAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
FUDAN UNIV
Publication Date
2015-10-28
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention belongs to the technical field of electrochemical power sources and discloses boron-doped manganese phosphate lithium / carbon composite materials and a preparation method thereof. The preparation method of the boron-doped manganese phosphate lithium / the carbon composite materials is characterized in that boron compounds, a lithium source, a manganese source, a phosphorus source and carbon source compounds are mixed uniformly through ball-milling and calcined for one shot under inert atmosphere, and therefore boron-doped manganese phosphate lithium material can be obtained. The general formula of the preparation method of the boron-doped manganese phosphate lithium / the carbon composite materials is LiMnP1-xBxO4-delta / C. Doped boron improves electrochemical performance of manganese phosphate lithium. The boron-doped manganese phosphate lithium / the carbon composite materials can be used as lithium-ion secondary battery anode materials.
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Description

Technical field

[0001] The invention belongs to the technical field of energy materials, and specifically relates to a lithium ion battery cathode material and a preparation method thereof, and particularly relates to a boron-doped lithium manganese phosphate / carbon cathode material and a preparation method thereof. Background technique

[0002] Lithium-ion batteries have been widely used in portable devices such as mobile phones, notebook computers and digital electronic products. With the increase in multifunctionality and integration of mobile devices, as well as the development of electric vehicles and photovoltaic industries, lithium-ion batteries have shown a broader Application prospects. The safety and electrochemical performance of lithium-ion batteries largely depend on the cathode material. In the current commercial lithium-ion batteries, lithium cobalt oxide (LiCoO 2 ), spinel lithium manganate (LiMn 2 O 4 ), ternary materials (nickel cobalt manganese lithium) and ol...

Claims

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