A kind of method that uses bagasse as raw material to prepare high-performance lithium-ion battery negative electrode material
A technology for lithium ion batteries and negative electrode materials, which is applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of unused bagasse, low actual utilization rate, backward technology, etc., and achieves low cost, excellent rate cycle performance, Simple preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] A kind of method using bagasse as raw material to prepare lithium ion battery negative electrode material, its steps are as follows:
[0026] Put bagasse, a by-product of fruit cane eaten daily, into deionized water, first stir for 30 minutes, then ultrasonically vibrate for 1 hour, and after suction filtration, put the bagasse in an oven at 60°C to dry it. Put the dried bagasse into the reaction furnace of the fixed-bed reactor, raise the temperature from room temperature to 800°C under a nitrogen atmosphere (the heating rate is 5°C / min), and keep it at 800°C for 2 hours, and then cool it with the furnace Get the first product. The initial product was ball milled in a ball mill for 2 hours (ball milling speed 250r / min), and after passing through a 200 mesh sieve, the lithium ion battery negative electrode material was obtained (see figure 2 ).
Embodiment 2
[0028] A kind of method using bagasse as raw material to prepare lithium ion battery negative electrode material, its steps are as follows:
[0029] Put the bagasse left after the sugar cane from the sugar factory is squeezed into deionized water, first stir for 30 minutes, then ultrasonically vibrate for 1 hour, and after suction filtration, put the bagasse in an oven at 80°C to dry it. Put the dried bagasse into the reaction furnace of the fixed-bed reactor, raise the temperature from room temperature to 900°C in an argon atmosphere (the heating rate is 5°C / min), and keep it at 900°C for 2 hours, then cool with the furnace After getting the first product. The initial product was ball milled in a ball mill for 2 hours (ball milling speed 250r / min), and after passing through a 200 mesh sieve, the lithium ion battery negative electrode material was obtained (see image 3 ).
Embodiment 3
[0031] A kind of method using bagasse as raw material to prepare lithium ion battery negative electrode material, its steps are as follows:
[0032] Put bagasse, a by-product of fruit cane eaten daily, into deionized water, first stir for 30 minutes, then ultrasonically vibrate for 1 hour, and after suction filtration, put the bagasse in an oven at 100°C to dry it. Put the dried bagasse into the reaction furnace of the fixed-bed reactor, raise the temperature from room temperature to 1000°C under a nitrogen atmosphere (the heating rate is 5°C / min), and keep it at 1000°C for 2 hours. After cooling with the furnace, Get the first product. The initial product was ball milled in a ball mill for 2 hours (ball milling speed 250r / min), and after passing through a 200 mesh sieve, the lithium ion battery negative electrode material was obtained (see Figure 4 ).
[0033] The negative electrode materials of lithium ion batteries obtained in Examples 1 to 3 were made into half cells fo...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More