Lishen has realized the advantages of 21700 battery and 21700 lithium battery

A subsidiary company of Tianjin Lishen Suzhou Lishen 21700 battery shipments are more than 400000, and the monthly output is more than 10 million cigarettes. With the improving of the production capacity and rolled yield, it can be realized by the end of monthly output from 20 to 25 million, and the annual output is expected to be 160 million. Before this, Samsung SDI has exhibited 21700 products, but it doesn't have mass production until in 2021.

At present, China's first carry Lishen 217004.5 Ah. The ternary lithium battery Jianghuai iEV6E will be listed. In addition to the Jianghuai automobile, Suzhou Lishen has with zhongtong coach, Nanjing Jinlong, brilliance Xinyuan, Foton and other car companies on the cooperation in the field of logistics vehicles, but also with Auchan, Changsha Zhongtai, Haima automobile, Xiao Peng car passenger car companies such as to establish a long-term business relationship.

Why take the lead to achieve the mass production?

Last January, tesla first proposed and plans to 21700 battery applied the latest all-electric tesla Model - 3 models.

Tianjin Lishen senior leadership keenly feel, 21700 is likely to become a cylindrical battery power battery development trend of the future, east China production base - Suzhou Lishen industrialization project of power battery if you continue to build 18650 production line, not only to meet the harsh homogeneity competition, also face the risk of product iterative upgrade.

Lishen in Suzhou on June 12 was founded in 2014, when planning power battery capacity 15 g w, first and second phase of the project total investment 2.1 billion yuan, the first phase of the project construction began on April 15, 2016.

Therefore, in the first phase of the project construction at the same time, Suzhou Lishen company immediately launched phase ii project feasibility study. After Lishen institute and technical committee of multiple research demonstration, the company leaders decided, will east China base phase ii project target product selected for the next generation of power battery, 21700 is the first domestic production line for 21700 product customization. Is building the first phase of the project, also changed directly to 21700 production line.

The four advantages of Suzhou plant in Suzhou Lishen quickly achieve 21700 production provides the possibility of the battery.

The first is product standardization. Suzhou factory in product design development stage will product positioning for a prospective 21700 power battery, through large-scale production, greatly reduces the cost, which reduces the system cost.

The second is highly intelligent. Factory all-round ascension information management, realize the whole life cycle of battery tracking, cooperate with ERP system and MES system have created a new model intelligent manufacture of lithium-ion batteries.

The third is the production automation. Suzhou factory production line automation level unprecedented increase, the production process almost put an end to the possibility of human intervention, greatly improve the consistency of the product.

The fourth is the perfection of quality. All production process more than 200 online monitoring, implements the automatic identification and automatic eliminate non-performing products. At the same time, the factory has domestic first-class laboratory, bear the battery item and all kinds of environment, recycling and safety monitoring system, guarantee the 1 don't make bad product into the customer.

According to the aforesaid executives of Tianjin Lishen, Suzhou power of god 21700 has three series of five product, to adapt to the models covering high-end electric passenger cars, logistics vehicles, large capacity, etc., covering the HEV, PHEV, BEV, etc. At the same time high power products that meet the 12 v start-stop system and the use of 48 v micro mixing system requirements.

What are the advantages of 21700 lithium batteries?

For many people, compared with 18650 batteries, 21700 lithium-ion battery is not a particularly familiar with the product.

According to the Tianjin Lishen introduction, 21700Lithium ion batteries compared to the traditional 18650 battery monomer, higher energy density battery system costs are lower, the vehicle battery pack lighter weight (pictured), easier to automate production four big advantage; In addition, the product unique physical structure of the new battery cover, and keep the power and the consistency of the pressure to eliminate battery safety concerns three advanced core design; Using pre nickel plated steel battery shell, put an end to the production of metal powder crumbs, reduce the battery self-discharge; Quadrupole structure to achieve high power discharge and challenge the higher performance.

Have specific requirements in our country, in 2020, power battery monomer energy density breakthrough 300 wh/kg, power battery system energy density of 260 wh/kg; Power battery system energy density 2025 to reach 350 wh/kg.

These requirements are prompting battery research and development of enterprises has to explore the power battery with high energy density. Look from tesla revealed 21700 battery information, 20% increase to 21700 compared with 18650 energy density and battery costs by 9%.Battery monomer battery capacity of ascension means that the number of batteries required under same energy decreased, while the improved although the weight and cost of a single cell, but the weight of the battery PACK and cost reduction.

In addition to 21700 the performance of the battery itself advantage, national policy support to the 21700 battery, too. Officially published in the national standard committee of GB/T34013-2017 "electric car with power battery products size" in the 21700 battery size impressively in the column.

Now Suzhou Lishen launched a 4.0 4.5 Ah Ah, two battery products, 21700 to 4.5 Ah products. The two batteries of specific performance indicators such as the following table:

Suzhou Lishen will be geared to the needs of the market capacity in years 21700 cylindrical batteries is 5.0 Ah, monomer energy density will reach 260 wh/kg.

At the same time, Suzhou Lishen also planning and implementation capacity in 2020 6 ah 21700 mass production of batteries, the current estimate system energy density in 200 wh/kg.

Working range of 310 kilometers

China's first pick up 217004.5 Ah Lishen ternary lithium battery Jianghuai iEV6E will be listed. In August 16 day labourer ministry released 299 new fleet announcement, Lishen production of 21700The ternary battery respectively with the Nanjing Jinlong and baic of two pure electric vehicle, marked the beginning 21700 battery application in the domestic new energy vehicles, but the two car not yet on the market.

Data show that carried a Lishen iEV6E 21700 ternary lithium batteries, and continued the traditional advantage of Jianghuai series products cost-effective, working condition of the range of 310 kilometers. This version iEV6E sports car although price is not high, pre-sales range is 69500 yuan, but still join the liquid-cooled battery temperature control system, battery temperature control can be between 15 and 35 ℃, in - 30 ℃ to 55 ℃ environment can be normal use. Winter can be controlled by mobile phone APP, using grid power to the battery before charging, to achieve maximum charging speed as soon as possible.

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