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Spinel/lamellar heterostructure material and preparation method

A spinel layered and heterogeneous structure technology, applied to structural parts, electrical components, battery electrodes, etc., can solve problems such as insufficient electrochemical performance, achieve the effect of simple and feasible preparation method, and improve cycle performance

Active Publication Date: 2017-05-31
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a spinel / layered heterostructure material, which aims to solve the problem of insufficient electrochemical performance of existing battery positive electrode materials

Method used

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  • Spinel/lamellar heterostructure material and preparation method
  • Spinel/lamellar heterostructure material and preparation method
  • Spinel/lamellar heterostructure material and preparation method

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Embodiment Construction

[0041] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0042] The purpose of the present invention is to provide a spinel / layered heterostructure material, aiming to solve the problem of insufficient electrochemical performance of the existing battery cathode materials.

[0043] The present invention is achieved in this way, a spinel / layered heterostructure material, the spinel / layered heterostructure material is LiMn 1.5 Ni 0.5 o 4 Coated Li 1.2 mn 0.54 Ni 0.13 co 0.13 o 2 After forming the composi...

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Abstract

The invention belongs to the field of battery materials, and particularly relates to a spinel / lamellar heterostructure material and a preparation method. The spinel / lamellar heterostructure material is a composite material formed by coating Li1.2Mn0.54Ni0.13Co0.13O2 with LiMn1.5Ni0.5O4, wherein the particle size of the Li1.2Mn0.54Ni0.13Co0.13O2 is 100 to 500 nm, and the LiMn1.5Ni0.5O4 coating layer is 2 to 40 nm in thickness. The material can achieve unexpected electrochemical performance, and the cycling performance, the rate capability and the mean voltage of the material are obviously improved.

Description

technical field [0001] The invention belongs to the field of battery materials, in particular to a spinel layered heterostructure material and a preparation method. Background technique [0002] With the advancement of science and technology, people's quality of life is getting higher and higher, and various household appliances are increasingly inseparable from daily life. In the further development of electrical appliances, battery technology has become a bottleneck limiting the wirelessization of electrical appliances. Therefore, manufacturing a battery with safe use and superior performance has become the research focus in the field of electrochemistry. The performance of the positive electrode material of the battery is one of the decisive factors for the performance of the battery. [0003] In the prior art, lithium-rich materials are favored by many researchers due to their high specific capacity. Typical examples include the patent application number 201410190666.8...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/505H01M4/525H01M10/0525
CPCH01M4/366H01M4/505H01M4/525H01M10/0525Y02E60/10
Inventor 武俊伟曾炯刘彦辰
Owner CHINA PETROLEUM & CHEM CORP