Yinlong lithium titanate battery technology -Lithium - Ion Battery Equipment

Yinlong lithium titanate battery technology -Lithium - Ion Battery Equipment

Gree Group terminated the acquisition of Zhuhai Yinlong, and Gree's plan to "cross-border car manufacturing" has now come to an end. At the beginning, Gree's proposed acquisition of Yinlong was as high as 13 billion yuan. What was it that attracted Gree to pay such a high price? It is reported that Dong Mingzhu, chairman of Gree Electric, values ​​Yinlong's core competitiveness - lithium titanate battery technology.

Where does Yinlong lithium titanate battery technology come from? Can it become mainstream in the market?

In 2010, Yinlong spent more than RMB 300 million to acquire 53.6% of the shares of AoTi Nanotechnology Company in the United States, and mastered the company's latest technology of lithium titanate materials; from 2012 to 2013, Yinlong successively acquired Zhuhai Guangtong Automobile, Shijiazhuang Zhongbo Automobile thus has the qualification to produce complete vehicles.(Lithium - Ion Battery Equipment)

So far, there are only two companies with lithium titanate materials that have achieved power and industrial applications. Zhuhai Yinlong is one of them, and the other is Japan's Toshiba.

Lithium titanate batteries are still not the mainstream of battery technology. At present, domestic auto manufacturers use ternary lithium batteries and lithium iron phosphate batteries more often. Ternary lithium batteries dominate the global market. For example, the Panasonic 18650 battery used by Tesla is a ternary lithium battery, while BYD is the representative, and commercial vehicle manufacturers such as Dongfeng and Jianghuai are using iron phosphate at this stage. lithium battery.

However, the safety of ternary lithium batteries has been questioned. At the beginning of the year, the Ministry of Industry and Information Technology suspended the entry of electric buses using ternary lithium batteries into the subsidy catalogue, which made many domestic auto manufacturers turn to lithium iron phosphate batteries. However, later unofficial information revealed that the subsidy restrictions on new energy vehicles using ternary lithium batteries will be relaxed, so it is unknown who will be the mainstream of the battery market in the future.

Why did lithium titanate batteries fail to become mainstream? Energy density is the main cause

Compared with ternary lithium batteries and lithium iron phosphate batteries, lithium titanate batteries have several advantages: high temperature safety, good low temperature performance, long cycle life, and fast charging. Security is a more prominent feature, and this is also an issue that everyone has paid more attention to recently. In the safety comparison of the two mainstream batteries, the lithium iron phosphate battery will be better, but it is still not as good as the lithium titanate battery. Another feature is low temperature performance. Many users have complained that the cruising range of electric vehicles is greatly reduced when the temperature is low, and lithium titanate batteries have obvious advantages in this regard. Works normally in a wide temperature range.

The disadvantage of lithium titanate batteries is the energy density that car manufacturers and users are most concerned about. Energy density represents the power storage capacity of the battery and directly affects the cruising range of the vehicle. At present, the energy density of lithium titanate battery is only about 1/2 of that of ternary lithium battery without further technical improvement. However, Yinlong hopes to improve the energy density of the battery under the premise of the safety of lithium titanate batteries, instead of improving the safety on the basis of high energy density, which is also the technical direction choice of a new energy enterprise.

Recently, a piece of information about the latest draft of the 2016 new energy vehicle financial subsidy has been circulated on the Internet. According to the draft, the new energy vehicle subsidy is subsidized according to energy density, and the cruising range is a necessary indicator. This seems to make the Yinlong lithium titanate battery technology with safety as the core to an embarrassing situation.



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