Focus: lithium titanate battery still has advantages after subsidizing the slope

As we all know, the new energy vehicle power lithium battery includes lithium iron phosphate, ternary lithium, lithium titanate, lithium manganate and other technical routes. At present, in the field of domestic new energy vehicles, especially passenger cars, lithium iron phosphate batteries still occupy the mainstream. But recently, Dong Mingzhu pressed all the assets and Wang Jianlin and Liu Qiangdong's friends to invest in Zhuhai Yinlong, so that the technical route of lithium titanate battery is focused on the spotlight, which has become the focus of the industry and the media.

It is worth mentioning that the new version of the new energy vehicle subsidy policy has recently officially landed, not only in the subsidy quota, but the maximum subsidy for new energy buses has been reduced from 500,000 yuan to 300,000 yuan, which is also proposed in product technology. More stringent requirements. Many experts commented that the impact of the new subsidy policy on new energy commercial vehicles will be relatively large. Then, what do users think about the purchase of new energy buses after the subsidies have subsided? Which power battery technology route will be more advantageous? The person in charge of several bus companies said that the fast-filling technical route is more suitable for public transportation; even after the subsidies have subsided, lithium titanate batteries still have an advantage.

Yinlong bus of Baoding Bus

Bus operating costs must be considered from the full life cycle

As for the new energy subsidy policy, the director of the Technical Equipment Department of Baoding Public Transport Corporation of Hebei Province, Cao Chunguang said that it will have certain impact on vehicle purchase. He pointed out that after the subsidy has subsided, the bus company will first look at safety when purchasing, and secondly will consider cost as a key consideration.

In the face of the high cost of lithium titanate battery, Cao Chunguang made it clear that he did not feel the high cost of lithium titanate bus. He emphasized that the cost of bus operation should be calculated according to the entire life cycle of the vehicle, and it should be considered comprehensively from the aspects of car purchase cost, labor cost and maintenance cost. “The longest bus route in Baoding is 30-40 kilometers. The cruising range is not necessarily high, and there is no need to install so many batteries.” The cost of batteries is actually the big cost of new energy buses, which is said to account for 1/3. If you can save battery load, it saves a lot of money.

Cao Chunguang, Director of Technical Equipment Department, Baoding Public Transport Corporation, Hebei Province

It is understood that Baoding Bus currently purchases 10 Yinlong Lithium Titanate Antique Brakes, in addition to a large number of lithium iron phosphate and ternary lithium battery buses purchased through replacement or subsidies. According to feedback from the drivers of the team, they generally feedback that the fast-filled Yinlong lithium titanate bus feels good. Because the charging speed is fast, it can be completed in 6-10 minutes, it does not affect the bus operation and scheduling; and the charging does not need to be assigned. The method of slow charging of lithium iron phosphate, ternary lithium, etc., takes more than two hours to charge a single charge. Generally, it is necessary to reach the proportion of two drivers with three buses, in order to ensure the smooth operation of the line. In this way, the lithium titanate bus has a very small impact on the operation and can compete with traditional cars. If you count the manpower plus the cost of purchasing the vehicle, then the price of the lithium titanate bus is higher.

Lithium titanate fast charging technology route is more suitable for public transportation

In addition to the advantages of fast charging and convenient charging and reasonable ratio of people and vehicles, the low failure rate of lithium titanate battery has become one of the reasons why bus companies prefer the Yinlong lithium titanate bus.

Minister of Shijiazhuang Public Transport Corporation Technical Equipment Department Meng Yan told the "China Automotive News" reporter, apply their track lithium titanate cell bus found its very low failure rate, and early failure rate Shijiazhuang bus using lithium iron phosphate battery is relatively high.

Meng Yan, Minister of Technical Equipment Department, Shijiazhuang Public Transportation Corporation

Meng Yan said that the domestic excellent lithium iron phosphate battery is currently under maintenance for 8 years, and the bus retirement period is 13 years, which means that 2 sets of batteries will be used within 13 years. This is not only the replacement of batteries, but also the electronic control, electric wires and high-voltage lines. "Now the labor is expensive, changing the battery, the cost is very high." He said. It is understood that in terms of life cycle, ordinary lithium-ion batteries are about 1000-2000 cycles, and lithium titanate batteries are 30,000 cycles, which is the longest and safest battery in lithium batteries. More importantly, Yinlong put forward the "10-year warranty" service, completely eliminating the worries of customers.

Meng Yan said that the poor temperature resistance is the biggest problem of lithium iron phosphate battery. The mileage of winter cruising is severely attenuated. When the summer temperature is high, the storage capacity will be reduced. These problems will not exist in lithium titanate batteries. At the same time, public transport is a non-periodic operation. There are many people who go to work in the morning and evening. There are many people in Pingfeng in the middle. If you pull too many batteries, it will be more than a dozen people. This property makes lithium iron phosphate batteries not suitable for use in public transportation environments. "The lithium titanate pure electric bus small battery, short battery mode is especially suitable for public transportation." According to Meng Yan, at present, more than 1,000 pure electric buses in the main city of Shijiazhuang are from the Yinlong lithium titanate bus.

“The fast charging method has great advantages in the bus field. After the subsidy has subsided, the lithium titanate bus still has a cost advantage.” Cao Chunguang said.

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