Running discussion on SP, page-20268

I don’t understand Huayou is going to spend USD$743M on Indonesia for nickel as high nickel might be only last for five years due to solid state lithium batteries are coming in near future.

Solid state lithium batteries are high density, safer, seems requiring more lithium.


Imec doubles energy density of its solid-state batteries to 400Wh/litre

Imec, the research and innovation hub, has announced at the European Electric Vehicle Batteries Summit (Berlin, June18-19) that it has created a solid-state Li-metal battery cell with an energy density of 400 Wh/litre at a charging speed of 0.5C (2 hours).


Current rechargeable Li-ion battery technology still has room for improvement, but not enough to significantly improve the range and autonomy of electrical vehicles., for example. As a result, imec’s researchers are working to replace the wet electrolyte with a solid material, which provides a platform to further increase the energy density of the cell beyond that of cells based on liquid electrolyte. The solid nanocomposite electrolyte that the R&D center has developed has an exceptionally high conductivity of up to 10 mS/cm with a potential for even higher conductivities. A distinguishing feature of the material is that it is applied as a liquid – via wet chemical coating – and only afterwards converted into a solid when it is already in place in the electrodes. That way it is perfectly suited to be casted into dense powder electrodes where it fills all cavities and makes maximum contact, just as a liquid electrolyte does.

Using that solid nanocomposite electrolyte in combination with a standard lithium iron phosphate (LFP) cathode and lithium metal anode, imec has been able to fabricate an improved battery with an energy density of 400 Wh/litre at a charging speed of 0.5C (2 hours), a record combination for a solid-state battery. With this result, imec managed to double its excellent results of last year, following its roadmap to eventually reach densities over1,000Wh/litre at a charging speed of 2-3C (less than half an hour).



The first 1GWh solid-state battery production line will be born "three yuan subversive" has blown the charge
2019-04-08Battery China Network




" Solid battery will become the subversive of ternary battery." Zhang Xiang, a car expert at the National Training Department of the Ministry of Industry and Information Technology, once said that he believes that solid-state batteries will become a weapon for electric vehicles to replace traditional fuel vehicles. Nowadays, the industrialization process of solid-state batteries is accelerating, and the investment enthusiasm of enterprises is also heating up.



Solid-state batteries will be put into production



Recently, Huineng Technology and Nandu Power have reached a preliminary consensus on the licensing of solid-state battery production technology. Huineng Technology has authorized the production of solid-state battery cells with an energy density of about 240Wh/kg to provide power to Nandu Power and provide the core equipment needed for production. Materials, while Nandu Power will build China's first 1GWh-scale solid-state battery production line.



Previously, Sun Microsystems CEO Yang Siwei once said that he would adopt a “Qualcomm-like business model” to authorize solid-state battery patented technology and production equipment for mass production to battery manufacturers and car companies. Yang Sizhen is not proud to point out: "With the IP licensing model, it is possible to shorten the time for the industry to develop solid-state batteries. We are confident that in the next two or three years, Huiergy solid-state battery technology will gradually spread around the world."



Battery China Network learned that Huineng Technology actually realized the mass production of solid-state batteries as early as 2013, but it is mainly used in the field of consumer electronics. In the past two years, it has accelerated the layout in the field of new energy vehicles. The G1 plant, which was built in Taiwan in 2013, is the first production line in the world that can produce solid-state lithium battery coils. It plans to complete the 1GWh expansion by the end of 2019, when the total capacity of solid-state batteries will reach 1.5~2GWh. .



Not long ago, another domestic battery company, Jiangsu Weilan New Energy Battery Co., Ltd. ("Jiangsu Weilan") held the groundbreaking ceremony for the solid-state battery project. The total investment of the project is 500 million yuan, and the first phase investment is 180 million yuan. It is planned to be put into operation in 2020. After completion, it will form an annual output of 0.1GWh solid battery production line. According to this rhythm, the solid battery production line in the past one or two years may usher in a round of production.



In fact, in addition to Huineng Technology and Jiangsu Weilan, domestic lithium battery companies and materials companies, such as Ningde era, BYD, Guoxuan Hi-Tech, AVIC Lithium, Jiangsu Qingtao, Lishen Battery, Yiwei Lithium Energy, Hengdian East Magnetic, Qiwei shares, Dangsheng Technology, Yanfeng Lithium Industry, Betray, etc., also laid out the development of solid-state lithium battery technology.



It is particularly worth mentioning that in November 2018, Suzhou Qingtao solid lithium battery production line was completed and put into operation in Kunshan, Jiangsu Province. It can produce 10,000 solid-state batteries per day, with an energy density of over 400Wh/kg. It is expected to enter the field of power battery application in 2020. China's solid-state lithium battery industrialization has taken a landmark step.



In terms of vehicle application, at the beginning of 2019, Skyrim exhibited the first solid-state battery electric vehicle ME7 in China. Zhang Hailiang, chairman and CEO of Skyline Automotive, said that Skyline solid-state batteries will be mass-produced and loaded on the market in 2021, and the energy density of batteries can exceed 300Wh/kg. At that time, Skyrim will become the first domestic OEM to adopt solid-state batteries, and Sky ME7 will become the first new energy vehicle in China with solid-state batteries as its power source.



Internationally, many well-known companies around the world, including Toyota, Panasonic, Samsung, Mitsubishi, BMW, Volkswagen, Hyundai, etc., have also invested heavily in solid-state batteries, and many companies have adopted a model of alliance development. Among them, 23 auto, battery and materials companies such as Toyota, Honda, Nissan and Panasonic in Japan plan to fully grasp the technology of all-solid-state batteries by 2022, andreduce the cost per kWh of battery packs to lithium batteries by 2030. About 30%. South Korea's three major battery manufacturers LG Chem, Samsung SDI and SKI also formed an alliance to jointly develop next-generation core battery technology including solid-state batteries.



Solid-state battery launches attack on ternary



Solid-state batteries are widely regarded in the industry because of their superior performance advantages. As a leader in the field of power batteries, both Japan and China plan to increase the energy density of power battery cells to 500 Wh/kg by 2030. And in theory, the traditional limits of lithium battery energy density liquid electrolyte not be higher than 500 Wh / kg, while the all-solid-state battery current energy density have been able to reach 400 Wh / kg, the estimated maximum potential value of up to 900 Wh / Kg.



In addition, in addition to the limitation of energy density, the current mainstream ternary lithium battery safety issues are also prominent. “In terms of chemical structure and battery structure, ternary materials are very prone to heat and there is a risk of explosion. However, at this stage, there is no perfect solution.” Qi Lu, director of the New Energy Materials and Technology Laboratory of Peking University Said. The safety advantages of solid-state batteries are very obvious. The solid electrolyte is non-flammable, non-corrosive, non-volatile, and liquid-free. The probability of spontaneous combustion of a solid-state battery car will be greatly reduced.



However, there are still many obstacles to the large-scale commercialization of solid-state batteries. It is understood that the solid electrolyte has a large interface impedance between the electrodes, and the interface compatibility is poor, and at the same time, the volume expansion and contraction of each material during the charging and discharging process leads to problems such as easy separation of the interface. As Jiangsu Weilan executive director Xiang Jin said, the main problem of solid-state batteries is still interface problems.



LEK (Ai Kaikai) consulted with China partner, the head of industrial and high-tech field Teng Yong also believes that the current development of solid-state batteries still faces the technical bottleneck of low ionic conductivity and high interface impedance, which cannot be replaced before the breakthrough. Yuan lithium battery system.



However, Teng Yong's view is still quite optimistic, and the solid-state battery technology is very advantageous in terms of both energy density and safety performance. He predicted that solid-state batteries will begin commercialization between 2023 and 2025 and will be mass-produced in 2025-2030.



Shi Chenxing, a veteran of China's industry research, believes that the future development of new batteries such as solid-state batteries will go through the following stages: 2020, using high-nickel positive electrode + quasi-solid electrolyte + silicon-carbon negative electrode to achieve 300Wh/Kg, using lithium rich before 2025 Positive electrode + all solid electrolyte + silicon carbon / lithium metal negative battery to achieve 400Wh / Kg, 2030 years ago fuel / lithium sulfur / air battery to achieve 500Wh / Kg.



Although the commercialization process of solid-state batteries still has a long way to go, the ternary battery will occupy the C position of the new energy vehicle power system for a long time, but the battle has already started, and the solid-state battery has already blown the charge to the position of the ternary battery.