BYD: It is expected to implement a comprehensive application scenario pilot for charging and swapping of large cylindrical sodium-ion battery electric two-wheelers in June

At the 2nd Sodium Battery Industry Summit, BYD Battery Product Line Director Zhang Jian revealed that it is expected to implement a comprehensive application scenario pilot for large cylindrical sodium-ion battery electric two-wheeled vehicle charging and swapping in Shenzhen in June, realizing vehicle, Cabinet and electrical intelligence integration. This move is expected to promote the application of sodium-ion batteries in the energy field.

He mentioned that in the application of light vehicles, everyone may think that the requirements for sodium batteries are not high, but in fact, this industry has particularly high requirements for sodium batteries.

In the selection of sodium battery technology route, BYD focuses on polyanionic materials. This is mainly due to safety and other factors. Such materials do not contain precious metals, have controllable costs and long cycle life. The energy density is relatively moderate. Therefore, when BYD chose the sodium battery technology route, it took into account factors such as safety and chose polyanionic materials as its key development direction. This material does not contain precious metals, has controllable costs, long cycle life, moderate energy density, and is more in line with safety and sustainability requirements

图Source Pixabay

Zhang Jian said that BYD's sodium battery adopts a large cylindrical structure. The basic structural parts are all aluminum, and with the full-lug structure, the battery power performance is very good. In addition, the advantage of large cylindrical cells is that the production cycle time is high, which can optimize manufacturing costs.

Zhang Jian is Yadi's sodium battery products that have passed short circuit, overcharge, impact, acupuncture and other tests. The storage in some high temperature scenarios is also relatively good, with magnification rates at room temperature and low temperature (especially low temperature). The performance is good, and the company will further adjust the cycle performance of the battery in the future.

In terms of energy density, the energy density of the sodium batteries that BYD will mass-produce this year is 105Wh/kg, and the long-term goal is more than 130Wh/kg.

BYD has previously introduced its development progress and plans in sodium-ion batteries: the 150Ah blade sodium battery has passed pilot testing and can be produced on a large scale, and the 20MWh sodium electric Rubik's Cube energy storage system is in the company's Nanning The industrial park is on trial basis.

The biggest features of sodium-ion batteries are abundant resources, low cost, excellent low-temperature performance and safety performance. However, its density is not high, so the sodium-lithium mixed solution is a compromise. This hybrid solution is a compromise solution because the disadvantage is that the energy density is not high. Due to this shortcoming, it is often used as an energy storage system for applications that require low cost and high safety, such as long-term storage of electricity and solar cells.

According to public reports, CATL, BYD, Zhongke Hainan, Chuanyi Technology, Penghui Energy, Funeng Technology, Huayang Shares and many other companies have already entered the sodium industry in 2023 Ion battery industrialization stage.

In January this year, the BYD (Xuzhou) sodium-ion battery project kick-off event was held in Xuzhou Economic and Technological Development Zone. The total investment of the project is 10 billion yuan. It mainly produces sodium-ion battery cells and PACK and other related supporting products. It is planned to Annual production capacity is 30GWh.

In February this year, BYD Fudi Battery officially stated: After discussion and decision, Fudi Battery will apply the research and development results of passenger cars to the two-wheeled vehicle field, increase investment in the research and development of two-wheeled vehicle batteries, and coordinate Positive energy from all parties to develop safer batteries.

Related reading:

"BYD Xuzhou sodium-ion battery project starts construction with total investment of 10 billion yuan"

"BYD Fudi Battery: R&D results will be applied to two-wheeled vehicles , Developing a safe battery that “can go upstairs”

The above is the detailed content of BYD: It is expected to implement a comprehensive application scenario pilot for charging and swapping of large cylindrical sodium-ion battery electric two-wheelers in June. For more information, please follow other related articles on the PHP Chinese website!