There are many reasons. Let me tell you my opinion: First of all, you must choose a battery manufacturer. Now Japan, South Korea, and China have the vast majority of shares. Japan is dominated by Panasonic and Sony, and South Korea. It’s Samsung and LG. In China, there are many companies. Generally, the world is divided into three parts. A company as powerful as Tesla is probably most likely to cooperate with several companies in Japan and South Korea. Then it depends on the products produced by each manufacturer. Battery system, lithium-ion battery, Japan uses lithium cobalt oxide, which is very powerful in digital products, and its performance is currently recognized as the best. Their power battery system is a route of lithium manganese oxide plus ternary or other materials. , Korean and Japanese companies are following similar routes. Chinese battery manufacturers are planning to overtake in the lithium iron phosphate battery industry. Americans are calling for this system. North American companies also hold many patents on lithium iron phosphate battery cathode materials. , for many reasons. I won’t be able to finish it for a while, but I’ll talk about it later.