Korean government pushes ‘K batteries’ plan! Investing in new lithium-eM technology betting these two directions

Korean government pushes 'K batteries' plan! Investing in new lithium-eM technology betting these two directions

According to the latest report of Korean Media, the Korean Trade, Industrial and Energy (Motie) will invest $ 25.3 million (30 billion won) in the next five years ($ 30 billion) to support the development next generation “K Batteries”) Especially focused on promoting the development of “lithium sulfur batteries” and Samsung SDI of LG chemistry. It is reported that a new generation of batteries will be used in the electric vehicles of Korea Modern Motors and supply power between Korean electric vehicle manufacturers and battery manufacturers.

. One representative of Motie said, “We will obtain critical battery technology according to the needs of consumers, which will dominate the global electric motor market..

“The current market, the positive material used by the dynamic lithium battery has been turned from lithium iron phosphate to the ternary system, gradually developing high nickel three yuan.. According to some battery suppliers, the monomer energy density of lithium-ion power lithium battery in the next five years is expected to increase to 300Wh / kg, but it is difficult to rely on the existing ternary system to achieve the target of battery cell energy density than 350Wh / kg.

This encourages scientists to seek the next breakthrough in rechargeable batteries.. Lithium sulfur battery, full solid state battery lithium ion battery next breakout point? According to the study, the lithium sulfur battery (LSB) is composed of a sulfur-containing cathode and a lithium anode in a liquid electrolyte, based on lithium and sulfur electrochemical reaction, its energy density is 2-3 times the lithium ion battery, which can effectively improve Electric car battery life, and due to low cost, non-toxic, sulfur reservoir, etc.

, is considered a feasible alternative to future energy storage equipment. However, the lithium sulfur battery should have a large amount of liquid electrolyte, and there is a risk of fire, and during the “discharge” circulation process, a dissolved lithium polysulfide (LiPs) is formed on the cathode, the latter diffuses to electrolyte and easily reaches. The anode, gradually reduces the capacity of the battery.

Further, since the sulfur is not electrically conductive, there is therefore also a conductive porous body material to accommodate sulfur, and simultaneously capture lithium polysulfide at the cathode.. Various factors, resulting in so far no manufacturer successfully commercial lithium sulfur battery.

It is understood that LG chemistry has been working with the Hankeean Institute and successfully developed a technology in June this year, and successfully produces lithium sulfur batteries in the production of less electrolytes.. At present, LG chemistry is preparing for commercialization of 2030 lithium sulfur batteries.

. Compared with lithium sulfur batteries, all solid-state batteries are more familiar. Its conventional lithium-ion batteries differ in the electrolyte and diaphragm, high safety, non-self-ignition, explosive risk of the traditional lithium-ion battery; the solid-state battery energy density of oxide and sulfide electrolyte is higher than the same.

Traditional lithium-ion battery. Yin China, Yin China, on May 10, pointed out that there are many ginsengers in solid-state batteries, battery companies, investment institutions, research institutions, etc., with three aspects of capital, technology, and talents, with more and more The company joins, the solid-state battery industrialization process continues to accelerate, and enter the “arms race” stage.

In terms of foreign major factories, Samsung SDI has been revealed before, will supply solid-state batteries for modern auto, and the battery life is 800 kilometers. The battery cycle life is more than 1000 times, and the volume is 50% lower than the same capacity of lithium-ion batteries; Japanese automobile manufacturing Shangfengtian and Electronics Division jointly established a joint venture in February this year, it will be used to produce cylindrical lithium-ion batteries and solid state batteries and “next generation” batteries..

Domestic, in December last year, the Ministry of Industry and Information Technology announced the “New Energy Automobile Industry Development Plan (2021-2035)” (Draft for Comment), in “implementing battery technology breakthrough action”, speeding up solid powertrain technology research and development and industrialization Summary as “New Energy Car Core Technology Research Project. Under the promotion of the policy, domestic companies have “enter the share” solid state battery: Fu Can Technology last month said that the company’s solid-state battery technology reserves will be applied to the next generation of power lithium batteries; the same month, the He Feng Lithium industry said, the company’s first generation of 200 million The test line in the Solid State Battery in Wah has been successfully put into production; at the end of last year, Beijing Weihua New Energy also said that in 2021, the company’s half-solid vehicle power lithium battery will be pushed to the market..

This progress is higher than the global car giants, the power lithium battery leader Toyota quantitative schedule 4 years in advance. In the above report, in the above report, the transition to all solid-state lithium-ion batteries is an important trend of lithium electrical technological advances; at present, the world is accelerating the development of solid-state batteries, although the industrialization is time, but such as electrolyte or negative material selection and Modification, battery process innovation should be a process of step by step; it is recommended to continue to pay attention to the announcement of the innovative technological achievements of the company and research units, and continue to pay attention to the research and development progress of leading company’s lithium-eM. .

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