Tech Li Ion Lithium Battery Solutions Design For Manufacturing / Utilizing
Tech Solution For Manufacturing And Utilizing Lithium Ion Batteries
1. Description :
Currently, the manufacturing of LIBs still needs to go through slurry mixing, coating, drying, calendering, slitting, vacuum drying, jelly roll fabrication (stacking for pouch cells and winding for cylindrical and prismatic cells), welding, packaging, electrolyte filling, formation, and aging, a multi-staged process being adopted by industry.
We provide tech solution for manufacturing and utilizing lithium ion batteries, provide Li-ion battery consulting and advisory services. Provide technical expertise, consulting and assistance based on over 20 years of industrial experience.
2. Applications : We provide the tech consult and support on how to produce lithium ion battery and improve the process.
3. Specifications :
| Clean room class | Dry room (dew point) | Temperature | Annotations | |
| Mixing | ISO 8 | / | 22 ± 2 °C | The electrode manufacturing takes place under clean room conditions, since foreign particles in the coating cannot be removed in the later process by cleaning methods (e.g. suction). |
| Coating | ISO 7 | semi-dry (5°C to -5°C) | ||
| Drying | ||||
| Calendering | ISO 7 - ISO 8 | |||
| Slitting | ||||
| Vacuum drying | (0°C to -30°C) | |||
| Separation | min. ISO 7 | Dry (-25°C to -35°C) | 22 ± 2 °C | The cell assembly must be carried out under dry conditions, as water inside the cell leads to strong quality losses (service life) and to a safety risk (formation of hydrofluoric acid). |
| Stacking / Winding | Dry (-40°C to -50°C) | |||
| Packaging | ||||
| EL filling | Extra dry (-50°C to -70°C) | |||
| Formation | / | / | 22 ± 3 °C | Cell finishing takes place in a normal environment. Since the cell is already sealed and degassing takes place in a vacuum chamber, there are fewer requirements for the particle environment and humidity |
| Degassing | ||||
| HT aging | 30 °C to 50 °C | |||
| NT aging | 22 ± 3 °C | |||
| EOL testing |
4. Feature advantage :
The advantages of our team as below
- Our team was founded by the professor team of Central South university . More than 60% of new energy enterprises in China are related to Central South University. With over 20 years of research and development experience in lithium batteries and new energy technologies, Zhengyuan institute has more than 100 invention patents and many professional papers in the field of lithium batteries. All makes us the top-tier company in Li -ion battery R&D technology. And we also We have helped commercialize a dozen companies by using our own patents and tech, almost covering the whole lithium ion battery producing chain .
- China’s new energy products account for more than 50% of the world’s total amount. Central South University is a renowned university in China, and over 60% of China’s new energy companies have close relationships with Central South University. The material discipline of Central South University has been ranked among the top 1% of the world in ESI for 7 consecutive years, and the total number of papers in ESI ranks among the top 10 of the world's universities, scientific research institutes and materials disciplines. The school's contribution to the major materials science ESI ranks first among relevant institutes in Central South University.
- Professor Li Jian of Central South University is a well-known expert in the field of new energy in China. The "Zhengyuan Institute for Energy Storage Materials and Devices " with Professor Li Jian as the key person which has 8 professors, more than 50 post-doctoral, doctoral, and master researchers, and published more than 300 science and technology papers; over 120 patents have been declared and more than 70 authorized.
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