The beginning of domestic power battery development

In the era of new energy vehicles, power batteries are very important. Now it seems that the power battery market in our country is very strong, and there are many large power battery companies, but at the beginning, the development of our battery industry was not optimistic.

In the early stage of the development of new energy vehicles, batteries could not become a climate because of their high cost and low cruising range. At that time, China began to support the development of new energy vehicles. Starting from 20 10, a large number of subsidies poured out, and the power battery industry chain gradually started.

The maximum number of hybrid cars is 50,000/car, the maximum number of pure trams is 60,000/car, and the maximum number of hybrid and pure electric buses with a height of 10 meter is 420,000-500,000/car. Under the huge subsidy, about 20 10, more than 500 battery enterprises have emerged in China.

Including today's industry leaders, such as BYD, a veteran founded by 1995, AVIC lithium battery funded by the national team, and recruit Contemporary Ampere Technology Co., Ltd., which was founded by 201/kloc-0.

Embarrassed, however, there was no battery factory in China that could fight at that time. Most of the subsidies were eventually earned by Korean battery factories.

About 20 10, the company that makes the best power battery in China has a yield of only 60%, while Japan and South Korea have achieved more than 90%. At that time, LG Chem won orders from SAIC, FAW and Changan in one breath, and the domestic sales of these three state-owned enterprises accounted for 60% in that year.

Not only the production efficiency is very different, but also it has obvious advantages in energy density compared with the mainstream ternary lithium battery routes promoted by lithium ferrous phosphate and Japan and South Korea, while China's technology accumulation in this field is almost zero.

Before 20 14, all domestic power battery enterprises were producing lithium iron phosphate batteries. For ternary lithium batteries, China's technology accumulation is almost zero. However, foreign private cars have long switched to ternary lithium batteries.

So by 20 15, China enterprises had to face the second life-and-death battle-the battle of ternary lithium battery.

For private cars, safety can be achieved through technical improvement, but the endurance must be strong, otherwise consumers will not buy it, so it is an inevitable trend to choose ternary lithium batteries.

This is the preliminary situation of China power battery.