Preparation method of secondary battery electrode active material and secondary battery containing the material

A technology of electrode active material and negative electrode active material, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of limited lithium resource reserves and high cost, and achieve the effects of low cost, short production cycle and easy preparation

Active Publication Date: 2021-12-17
合肥华思系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It aims to solve the shortcomings of limited lithium resource reserves and high cost of existing lithium-ion batteries. The regulation of material stability, reaction reversibility and the number of active sites improves the battery capacity, cycle life and safety.

Method used

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  • Preparation method of secondary battery electrode active material and secondary battery containing the material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] see figure 1 As shown, a secondary battery containing an electrode active material includes a negative electrode current collector 1, a negative electrode active material 2, an electrolyte 3, a separator 4, a positive electrode active material 5, a positive electrode current collector 6, and a battery case for packaging;

[0050] The preparation method of electrode active material specifically comprises the following steps:

[0051] Preparation of battery negative electrode: calcining the silicon wafer at 600°C for 2 hours in a hydrogen atmosphere; soaking the calcined silicon template in an ethanol solution containing 4-pyridinethiol overnight to form a self-assembled monolayer template; 4 ) 2 ·6H 2 O and pyridine are dissolved in 50mL ethanol according to molar ratio 1:4, form the first solution; [(C 4 h 9 ) 4 N] 2 Ni(CN) 4 and pyridine were dissolved in 50 mL of ethanol at a molar ratio of 1:4 to form a second solution; soak the silicon template in the first s...

Embodiment 2

[0059] It is basically the same as Example 1, except that Si is replaced by Cr.

Embodiment 3

[0061] It is basically the same as in Example 1, except that Au is used instead of Si.

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Abstract

The invention discloses a preparation method of an electrode active material for a secondary battery and a secondary battery containing the material. The electrode active material includes a negative electrode current collector (1), a negative electrode active material (2), an electrolyte (3), The separator (4), the positive electrode active material (5), the positive electrode current collector (6) and the battery case used for encapsulation, the electrode active material is prepared with low raw material cost, the raw material is easy to prepare, the process is simple, the production cycle is short, and the prepared electrode The active material can be used as the positive electrode material of the battery or as the negative electrode material of the battery. It is a MOFs material with large π bonds and bimetals. The material has a large interlayer spacing and provides a large channel, which is beneficial to The intercalation and deintercalation of ions significantly improve the electrical conductivity of the material.

Description

technical field [0001] The invention belongs to the technical field of electrode materials, and in particular relates to a preparation method of an electrode active material of a secondary battery and a secondary battery containing the material. Background technique [0002] With the development of modern science and technology, people's consumption and demand for energy are increasing, and it is imminent to find a new type of energy. In the past 30 years, lithium-ion batteries have achieved tremendous development and are widely used in various electronic products such as mobile phones, computers, and cameras. In order to alleviate the energy shortage and environmental pollution problems in recent years, scientists have been "thirsty" for batteries. Among them, new energy batteries (including new lithium-ion batteries, lithium-sulfur batteries, lithium-oxygen batteries, etc.) are favored by researchers because of their high theoretical capacity and broad development prospec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/60H01M10/0525H01M10/054C08G83/00
CPCY02E60/10
Inventor 梁彬
Owner 合肥华思系统有限公司
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