Which power battery technology is strong?

As we all know, science and technology are the primary productive forces. The development of science and technology and every major breakthrough will lead to profound changes in the economy and tremendous progress in human society. In today's world, science and technology have become the most active factor in productivity.

In the current lithium battery industry, the advanced and backward battery technology, whether the energy density can keep up with the pace of market development, is not only the issue of whether or not to get subsidies, but also profoundly affect the survival of enterprises. Lithium battery big data research found that among the hundreds of lithium battery companies in China, most of them invested 6% of their turnover in the R&D team, only to have more advanced battery technology.

In April this year, the Ministry of Industry and Information Technology, the National Development and Reform Commission, and the Ministry of Science and Technology jointly issued the Medium and Long-Term Development Plan for the Automotive Industry. The phased goal of the planned new energy sector is that by 2020, the power cell's specific energy will reach 300 watt-hours/kg or more, and strive to achieve 350 watt-hours/kg, and the system will strive to reach 260 watt-hours/kg. By 2025, the power battery system has a specific energy of 350 watt-hours/kg.

Lithium battery companies have taken advantage of the trend and launched a new round of wrestling. The battle for energy density has been vigorously started.

So, the question is coming, which power battery technology is strong?

Guoxuan Hi-Tech

The website of the Ministry of Science and Technology reported on May 19 that under the support of the key special research and development program “new energy vehicles”, the project led by Hefei Guoxuan Gaoke Power Energy Co., Ltd. “Research and development of high specific energy lithium battery” The integrated application has made progress in the development of battery cell samples with energy densities of 281Wh/kg and 302Wh/kg.

Ningde era

On January 17, the “New Generation Lithium Ion Power Battery Industrialization Technology Development” project was launched in Ningde. The project was promoted by the Science and Technology Department of Fujian Province. The Ningde era and the Institute of Physics of the Chinese Academy of Sciences jointly announced the development of a lithium-ion battery with a high-nickel ternary material as the positive electrode and a silicon-carbon composite as the negative electrode. The specific energy is greatly increased from the current 150-180Wh/kg to more than 300Wh/kg, and the cost will be significantly reduced.

BYD

BYD's battery technology is mainly lithium iron phosphate batteries, and as the main battery type of electric vehicles, BYD has the world's top level in the research and development of lithium iron phosphate batteries.

At present, the monomer energy density of BYD lithium iron phosphate battery is 150Wh, and then BYD plans to increase the energy density to 160Wh. In addition to lithium iron phosphate batteries, BYD is also developing ternary lithium batteries simultaneously. If the technology of ternary lithium batteries is combined with lithium iron phosphate batteries, some adjustments will be made to the original use of graphite as a negative electrode material, then around 2020. BYD plans to increase the monomer energy density of lithium iron phosphate batteries to 200Wh.

In addition, in the follow-up ternary battery, BYD's ternary battery has been in mass production conditions, and the current energy density has reached 200Wh/kg. The goal of BYD's ternary battery is to achieve 240Wh/kg of battery energy in 2018 and 300Wh/kg in 2020.

Tianjin Lishen

On April 13th, the website of the Ministry of Science and Technology reported that the project “High Specific Energy Density Lithium Ion Power Battery Development and Industrialization Technology” led by Tianjin lishen battery Co., Ltd. developed a power battery cell with an energy density of 260Wh/kg. Compared with the current power battery commonly used in electric vehicles, the energy density has increased by 30%.

Beijing Guoneng

Energy density of Guoneng lithium iron phosphate battery: battery core 160Wh/kg, PACK128Wh/kg, energy density of ternary power battery: 240Wh/kg, reaching the world advanced level.

The national battery 240Wh/Kg ternary system has been developed, and the various test indicators are superior; the 280-320Wh/Kg R&D products have entered the trial production stage, and the high-performance materials have been finalized.

Thornton New Energy

This year, Thornton New Energy's ternary battery of 230 wh / kg and lithium iron phosphate battery of 160 wh / kg can be mass-produced. According to Wen Yibo, chairman of Thornton, Thornton can not only complete the national target of 350wh/kg of power battery energy by 2020, but also exceed the target of 400wh/kg and strive to achieve industrialization.

AVIC Lithium Battery

The current square ternary material battery of AVIC Lithium Battery is about 170Wh/Kg, and the soft ternary material battery is up to 200Wh/Kg. The company is aiming to achieve an energy density of 300Wh/Kg by 2020 through improvements in positive and negative materials, electrolytes and membranes, and improvements in manufacturing processes.

Huanyu Saier New Energy

The metal core of the iron-lithium battery currently produced by Huanyu Saier New Energy has reached more than 155Wh/Kg. The energy density of the latest certified lithium iron phosphate power battery system standard box has exceeded 130Wh/Kg, which is in the leading position in the industry, and another three yuan. Battery cells have also reached 200Wh/Kg. It is planned that by 2020, the company's lithium-sulfur battery/solid lithium battery/air battery system will achieve energy density ≥300Wh/Kg and battery pack ≥250Wh/Kg.

Carne New Energy

Kane New Energy has been able to supply energy density 220Wh/kg batteries in batches. The system specific energy is greater than 130Wh/kg batteries. At the same time, the process and technical level have realized 250Wh/kg and 300Wh/kg product reserves respectively.

Bick battery

In 2016, BAK ternary materials power battery industry accounted for more than 30%, ranking first. At present, the energy density of the Buick single cell is nearly 220Wh/kg, and will be further increased to 300Wh/kg.

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