Why accelerate the implementation of battery swapping construction? 

Multiple fire accidents: Electric bicycles cause frequent fire accidents, becoming a new pain point for people's livelihoods. In the past threeyears, wCNAE has always focused on the industrial development of sodium ion batteries, committed to creating "high safety, high performance, and low cost" sodium ion battery products. At the same time, with the continuous deepening of technological research and development, more breakthroughs will be achieved in various aspects such as technical difficulties.

hile the number of electric bicycles has been increasing year by year, electric bicycle fire accidents have also increased year-on-year.
 

Difficulty in unified supervision: The equipment specifications and operational levels of each battery swapping platform are different, and there is an information gap between the operating unit and the regulatory department, making collaborative and collaborative disposal difficult.
 

Difficulty in risk warning: Unable to provide risk warning for non-standard behaviors such as exceeding standards, modified vehicles, and high-power charging, resulting in delayed disaster emergency response.
 

The above are all important reasons for accelerating the construction of two wheeled vehicle swapping stations, and CNAE's key launch of sodium battery swapping packages has more advantages and greatly reduces safety hazards.

 The advantages of CNAE sodium battery swapping 

At present, lithium batteries are mainly used for battery replacement in two wheeled vehicles, but in terms of product performance, sodium batteries are more competitive.

Firstly, it has good safety performance: compared with lithium batteries, sodium batteries have a very low probability of generating dendrites and will not cause short circuit self ignition due to piercing the internal structure of the battery. Sodium batteries can achieve non ignition and non explosion in tests such as overcharging, over discharging, short circuit, puncture, and compression. Faced with the frequent occurrence of fires in two wheeled electric vehicles, sodium battery swapping is clearly more prominent in terms of safety performance. Greatly reduces safety hazards.

The second is low-temperature fast charging: Compared with lithium batteries, sodium batteries have better fast charging performance in any weather conditions. Generally speaking, lithium iron phosphate batteries can be charged to 80% in 20-30 minutes, while sodium batteries can shorten the time by about 40%. Shortening the charging time can improve the battery turnover rate and the daily service capacity of the battery swapping station, thereby shortening the investment payback period for manufacturers.

The third is excellent high and low temperature performance: CNAE sodium batteries have a working temperature range of -45 ℃ to 80 ℃, and they still have good capacity retention in high and low temperature environments. In cold environments, the capacity retention can still be close to 90%, while lithium batteries only charge and discharge 50% -60% of their usual temperature below 0 ℃. Therefore, sodium batteries have more advantages in cold and cold places.

The fourth is abundant raw material reserves and lower costs: sodium ranks sixth in abundance in the Earth's crust, with an abundance more than 1000 times that of lithium. The price of raw material battery grade sodium carbonate remains around 5000 yuan/ton, while the price of lithium carbonate can reach up to 600000 yuan/ton. The sodium element comes from a wide range of sources, and the sodium carbonate required for preparing sodium ion batteries is produced by Hou's method, while the NaCl used is inexhaustible; However, the distribution of lithium elements is uneven, with over 70% of resources concentrated in countries such as Chile, Argentina, and Bolivia in South America. 80% of China's lithium resources rely on imports, which poses a certain threat to China's energy security. Lithium ore prices fluctuate greatly.

 CNAE Two wheeled Electric Vehicle Safe Battery Replacement Solution 

At present, the main problems of centralized charging sheds include: 

large land area, long charging time, severe shortage of parking spaces, close proximity of charging spaces to residential buildings, high safety hazards in charging, mostly outdoor charging ports, chargers easily getting wet and electric shock, occupying charging spaces, surrounding the construction of the community affecting the aesthetic appearance of the community environment, and frequent disturbance of vehicle alarm sounds and complaints about safety hazards caused by residents moving their vehicles.

More intelligent and secure battery swapping methods:
1. Adopting a unified standard of IoT intelligent batteries, the battery management system inside the battery can communicate in real-time with the cabinet control board for temperature, current, voltage, etc. In case of abnormalities, the charging should be immediately cut off, the battery locked in the compartment, and reported to the cloud platform.
2. Eliminate the safety hazards of bringing batteries home for charging. There is encrypted communication between the battery and the battery exchange cabinet, and matching charging can only be carried out in the cabinet.
3. The area and efficiency of battery swapping are 50 times that of charging methods, and it covers an area of 3 square meters and can serve the needs of nearly 300 owners for electric bicycles to be recharged.

Frequently asked questions:
1. Vehicle matching issue: Suitable for electric vehicle models with high matching degree, suitable for 70% of national standard models on the market, and basically applicable for national standard models with batteries under the seat cushion.
2. User upgrade and battery replacement methods: Conduct battery safety checks in the community, replace old batteries, and promote residents to upgrade their vehicles to battery replacement methods.

CNAE has always focused on the industrial development of sodium ion batteries, committed to creating "high safety, high performance, and low cost" sodium ion battery products. At the same time, with the continuous deepening of technological research and development, more breakthroughs will be achieved in various aspects such as technical difficulties.