A kind of preparation method and application of lithium ion battery porous negative electrode material
A lithium-ion battery and negative electrode material technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of low material porosity, high material cost, complex process, etc., achieve high capacity, simple pore-making process, and process simple effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] A preparation method of a lithium-ion battery porous negative electrode material, the steps are as follows:
[0030] 1) Preparation of Ge-Sn-Al alloy ingot
[0031] According to the target alloy composition Ge 15 sn 15 Al 70 (atomic ratio), the germanium block with a purity of 99.99%, the tin block with a purity of 99.99%, and the aluminum block with a purity of 99.99% are prepared as raw materials. When preparing materials, the amount of raw materials is multiplied by a correction factor to reduce the composition deviation caused by the burning loss during alloy smelting. According to the test results of burning loss obtained by the inventor through a large number of experiments, the correction coefficients are 1.01 for germanium, 1.16 for tin, and 1.05 for aluminum. The weighed raw materials are smelted by arc melting method, and the vacuum degree of the materials is pumped to 2.5×10 -3 Pa, the argon gas with a purity of 99.999% is introduced to -0.05MPa, and the...
Embodiment 2
[0040] A preparation method of a lithium-ion battery porous negative electrode material, the steps are as follows:
[0041] 1) Preparation of Ge-Sn-Al alloy ingot
[0042] According to the target alloy composition Ge 10 sn 10 Al 80 (atomic ratio), the germanium block of 99.99% purity, the tin block of 99.99% purity, and the aluminum block of 99.99% purity are prepared as raw materials. When preparing materials, the amount of raw materials is multiplied by a correction factor to reduce the composition deviation caused by the burning loss during alloy smelting. According to the test results of burning loss obtained by the inventor through a large number of experiments, the correction coefficients are 1.01 for germanium, 1.16 for tin, and 1.05 for aluminum. The weighed raw materials are smelted by arc melting method, and the vacuum degree of the materials is pumped to 2.5×10 -3 Pa, the argon gas with a purity of 99.999% is introduced to -0.05MPa, and the arc melting starts. ...
Embodiment 3
[0051] A preparation method of a lithium-ion battery porous negative electrode material, the steps are as follows:
[0052] 1) Preparation of Ge-Sn-Al alloy ingot
[0053] According to the target alloy composition Ge 12.5 sn 12.5 Al 75 (atomic ratio), the germanium block of 99.99% purity, the tin block of 99.99% purity, and the aluminum block of 99.99% purity are prepared as raw materials. When preparing materials, the amount of raw materials is multiplied by a correction factor to reduce the composition deviation caused by the burning loss during alloy smelting. According to the test results of burning loss obtained by the inventor through a large number of experiments, the correction coefficients are 1.01 for germanium, 1.16 for tin, and 1.05 for aluminum. The weighed raw materials are smelted by arc melting method, and the vacuum degree of the materials is pumped to 2.5×10 -3 Pa, the argon gas with a purity of 99.999% is introduced to -0.05MPa, and the arc melting star...
PUM
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
| current efficiency | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More