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Composition for preparing electrode material

A technology for active electrode materials, electrodes, applied in nanotechnology for materials and surface science, nickel compounds, battery electrodes, etc.

Pending Publication Date: 2022-05-27
EV金属英国有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nickel-based materials present some challenges in terms of safety and stability

Method used

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  • Composition for preparing electrode material
  • Composition for preparing electrode material
  • Composition for preparing electrode material

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Experimental program
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Embodiment Construction

[0082] Aspects and embodiments of the present invention will now be discussed with reference to the accompanying drawings. Additional aspects and embodiments will be apparent to those skilled in the art. All documents mentioned in this text are incorporated herein by reference.

[0083] figure 1 is a scatter plot showing crystallite size versus % First Cycle Efficiency (FCE %) for a number of nickel-based hydroxide powder samples. like figure 1 shown, by providing a nickel-based hydroxide powder (precursor material) having an average crystallite size of up to 10 nm, as determined by Scherrer fitting of the (001) reflection of the XRD powder diffractogram of the nickel-based hydroxide powder, Electrode materials made from the precursor materials can be provided with improved first cycle efficiency (FCE) compared to similar electrodes produced from precursor materials having an average crystallite size greater than 10 nm.

[0084] As described above, one or more crystallites f...

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Abstract

A nickel-based hydroxide powder having an average crystallite size of at most 10 nm, as determined by Scherrer fitting of the (00I) reflections of the XRD powder diffraction pattern of the nickel-based hydroxide powder, and a method for producing the nickel-based hydroxide powder are provided. The nickel-based hydroxide powder can be used as a precursor for forming a lithium transition metal oxide active electrode material.

Description

technical field [0001] The present invention relates to compositions suitable for the preparation of electrode materials, in particular, but not exclusively, to compositions suitable for the preparation of cathode materials for use in lithium ion rechargeable batteries and to methods for preparing such compositions. Background technique [0002] Lithium-based batteries are used in a variety of applications including, for example, portable electronics, power tools, medical devices, military, electric vehicles, and aerospace applications. They generally have relatively high energy density, low self-discharge, and small memory effects. [0003] Various materials are known for use in lithium-ion batteries. For example, hand-held electronic devices often use lithium cobalt oxide materials (LiCoO 2 ) as the active component of lithium battery cathodes. However, LiCoO 2 Lithium battery cathodes are generally expensive and exhibit relatively low capacities. [0004] Other mater...

Claims

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Application Information

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IPC IPC(8): C01G53/00H01M4/525H01M10/0525B82Y30/00B82Y40/00
CPCC01G53/006C01G53/42H01M4/525H01M10/0525B82Y30/00B82Y40/00C01P2002/60C01P2002/72C01P2004/64C01P2006/40C01G53/04C01P2004/03Y02E60/10C01G53/66C01P2002/50H01M4/623H01M4/625
Inventor I·埃德沃西K·洛瓦特M·普拉内利斯M·肖内西
Owner EV金属英国有限公司