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release time:2024-08-27 Hits: Popular:AG11 battery
Briefly describe the reasons why BYD once attached great importance to 32700 battery
To clarify this issue, let's first take a look at why BYD has spent so much effort developing 32700 battery. In fact, BYD was fully prepared at the beginning. After analyzing the international situation at the time, the choice made based on battery technology was just the development of the times and the emergence of giants, which gradually made BYD lose its advantages.
1. The core technologies of lithium manganate and ternary lithium are both in the hands of Japanese and Korean companies.
In the automotive battery industry, Japanese and Korean companies have long mastered the core technologies of lithium manganate and ternary lithium. Especially for ternary lithium, whether it is technology, process or equipment, the industry leaders in Japan and South Korea have reached a very mature and stable stage. Therefore, when developing new energy vehicles, international giants such as Tesla and BMW will first choose internationally renowned products such as Japan's Panasonic and South Korea's Samsung.
If BYD had been involved in ternary lithium-ion batteries at that time, it would not have been able to compete with Japanese and Korean manufacturers.
2. BYD’s lithium iron phosphate battery has little competition pressure.
At that time, Japanese and Korean companies basically had no involvement in 32700 battery, but they were not without competitors. There are two companies in the United States, A123 and Valence, which are the main processors of 32700 battery, but at that time, my country's technology was not much different from that of the United States. Therefore, if BYD chooses 32700 battery as a breakthrough point, it can quickly reach the world's leading level.
3. my country is extremely short of cobalt and nickel resources
According to the 2011 National Mineral Resources and Reserves Report published by the Ministry of Land and Resources in 2012, China's cobalt reserves are based on 79,900 tons, and the resources are 566,000 tons. The reserves with mining significance are only 42,100 tons, accounting for 645,900 of the identified resource reserves. 6.5% of tons. my country's cobalt resource reserves only account for 1% of the global total, and its import dependence is over 90%.
The formula of ternary lithium-ion batteries is inseparable from the two precious metals cobalt and nickel. Moreover, these two precious metals have international futures transactions, and the prices are not only high, but also highly volatile. 32700 battery do not have the above two precious metals, so this is why BYD initially developed 32700 battery.
4. Stability of 32700 battery at high temperatures
When vehicle battery technology was not very mature, batteries often exploded (even now, Tesla still has not completely solved the safety issue). Therefore, safety is regarded as the first priority for vehicle batteries. 32700 battery are relatively stable under high temperature conditions. Therefore, considering safety, 32700 battery naturally become the best choice.
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