Lithium battery separator war In the new energy war, as Chinese lithium battery companies grew up, unwilling Americans began to think of the internal battery materials. On October 30, 2019, Celgard, a former lithium battery separator giant, sued Xingyuan Materials and its subsidiary "Xingyuan American Research Institute" in Shenzhen, China, in the Oakland Division of the Northern District Court of the US Federal District of California. The reasons for litigation are: "Infringe its patent rights, infringe on trade secrets, unfair competition, induce breach of contract, and intentionally interfere with potential economic relations." Although it was dismissed by local courts in the United States more than three months later, the long soap opera-like "lawsuit" has not ceased. After all, for Celgard, there are not too many serious things that can be done now. In the field of dry membranes that was once proud, Celgard has gradually lost market share due to the gradual loss of technology and price advantages. Beginning in 2013, LG Chem, SK, Sumitomo, MTI, Targray... Any half of the influential battery separator companies have been on Celgard's prosecution list. But embarrassingly, Celgard mostly ended in defeat or settlement. Reported by Zoe Jiang AOTELEC Battery Technology Company 2020-7-2

5 companies competition on Million Miles battery Overall, long life, high battery life, and low cost have become the main development direction of power batteries. All battery companies are running fast on the new technology track. In 2019, Tesla announced that it had developed a new type of battery that would allow its battery life in electric vehicles to exceed 1 million miles (1.61 million kilometers), more than double its current battery life. In May 2020, Tesla announced that it had improved its new "Million Mile Battery", which further reduced cobalt and increased the energy density of the battery, while reducing costs. On June 23, Musk said that Tesla will hold the "Battery Day" on September 15. Industry speculation may be announced at that time about the "millions of miles" battery news. However, before waiting for Tesla to disclose more detailed information, the CATL took the lead in commercializing the "Million Mile" battery. On June 8, Zeng Yuqun, chairman of CATL, announced that the company is preparing to produce batteries with a life span of 16 years and a mileage of 1.24 million miles (about 2 million kilometers). It is understood that the core of the CATL self-repairing long-life battery technology is to slow down the capacity decay rate, that is, to control the rate of active lithium consumption. The battery capacity decline is related to the cathode electrode, anode electrode, and battery electrolyte. There are already companies such as Tesla, CATL, General Motors, SVOLT and BYD in the "Million Mile" battery track. It is expected that more battery companies and OEMs will join the camp in the later period.

Opportunities for lithium battery equipment under 1000GWh capacity At the 13th High-tech Lithium Battery Industry Summit recently, GGII shared the analysis report of "Analysis of the New Round of Capacity Expansion for Lithium Battery Equipment", which comprehensively analyzed the market demand, output value scale, innovation path, cooperation direction, etc, on lithium battery equipment market. The report pointed out that in 2022, the global production of new energy vehicles is expected to exceed 5.2 million, of which the Chinese market accounted for more than 50%. By then, China's lithium battery market will exceed 260GWh, of which the power battery will exceed 190GWh, and shipments will be mainly concentrated in top10 companies. At present, the localization rate of domestic lithium battery equipment has reached 90%-92%. Driven by new production capacity, by 2022, the market share of domestic lithium battery equipment will reach 18-19 billion yuan. According to the survey feedback, the leading equipment companies are further widening the gap with second-tier equipment companies by improving the yield rate, innovating processes, reducing operating costs, researching and developing integrated equipment, and providing semi-complete/complete lines. Specifically, improving equipment stability and reducing the loss rate is an important way for head equipment companies to improve the yield rate. By improving the technical content of equipment and production efficiency, we continue to research and develop, establish standardized and flexible modules, shorten the research and development cycle, and become its core path to reduce costs. It is worth noting that the amount of investment in unit production capacity has been greatly reduced, and internationalization, intelligence, integration, and full-line delivery are the key directions for the future development of the lithium battery manufacturing market. Reported by Kevin Zeng AOTELEC BATTERY COMPANY 2020-06-18

Compact Digital Pressure Controlled Electric Coin Cell Crimper Shipped to The Netherlands Thanks for the trust from Specicialith company which is special in lithium ion battery research. We have recommend manual coin cell crimper to Dr.Axel, but he finnal choose our advanced type electric crimper with digital pressure controlled function. The best feature of this coin cell crimping machine is the digital pressure controller can keep crimping force consistent at each time, so there is few impact of research result during the crimping process. This MSK-160E electric crimper also equipped a polymethyl methacrylate(PMMA) protective cover, which keep crimping process in safe. When the door of cover is open, machine will not work, only when you cloth the door, the start button works. Let’s check some pictures of real products:

Get 6 keywords for blade batteries in one minute In early June 2020, BYD's Verdi Battery disclosed the internal situation of its Bishan plant in Chongqing. AOTELEC put together 8 keywords related to plant layout, capacity planning, product performance and other fields, so that you can have a comprehensive understanding of the blade battery in 1 minute. Keyword 1 Capacity - 10 GWH It is estimated that by the end of 2020, the capacity of the Chongqing Bishan plant will reach 10GWh. Keyword 2 Upper limit of system energy density-170Wh/kg The current system energy density of the blade battery is 140Wh/kg. Later, by further improving the battery material and design at the cell level, the energy density will reach 170Wh/kg. Keyword 3 Maximum length of blade battery-2000mm The length of the blade battery currently put into production is 960mm, and according to the patent applied for, its length can be between 600 and 2,000mm. Keyword 4 Low temperature charging performance—110min Under the environment of -10℃, the blade battery can be charged from 0 to 100% within 110 minutes. Under the same circumstances, the NCM-811 battery takes 98 minutes. Keyword 5 Low temperature discharge performance-90% 25 ℃ is the best operating temperature of the blade battery, at this time the discharge energy ratio is 100%. As the temperature decreases, this ratio will gradually decrease; but at -10 ℃ and -20 ℃, both can be stabilized at 90%. Keyword 6 Cycle life-5,000 times After 5,000 charge-discharge cycles, the cycle life of the blade battery remained above 80%; the NCM811 battery as a control group had about 2,000 cycles. Reported by Jack Shen AOTELEC BATTERY  2020-6-6

Thanks for the patience of clients in Italy, due to the impact of COVID-19, the delivery time was delay. Finally, the automatic sorting machine is completed and pass the factory acceptance test by customer, we will their FAT protocl and provide on-line testing report to them, also took some pictures and short videos to prove it. For this automatic 18650 battery sorting machine, it is consists of an automatic feeder, an automatic printer, a 5-channel test system, an automatic sorter, a belt-type receiver and so on. With barcode reading function, the effeciency is above 5500pcs per hour, around 5500-6200pcs. It is very fast sorting speed in the market. Easy operation and save labor cost. Without further ado, let’s check it:

2020 carbon nanotube conductive paste market size will break 70,000 tons At present, the domestic conductive agent materials mainly include conductive carbon black, conductive graphite, carbon nanotubes (CNT), graphene, etc. The new conductive agents (carbon nanotubes, graphene and their composite conductive agents) have higher conductivity and less proportion of addition. Its application scope and proportion are gradually expanding. In the next few years, China's new conductive agents, especially carbon nanotube conductive agents, will gradually replace traditional conductive agents. By 2020, the market size of carbon nanotube conductive paste will exceed 70,000 tons, mainly based on: 1) The new energy vehicle market continues to increase the requirements for fast charging performance of power batteries. With excellent electrical conductivity, the application range of carbon nanotube conductive agent will gradually expand; 2) The technology of carbon nanotube conductive agent gradually matures, the unit production efficiency and process automation are further optimized, and the price drops; 3)The industrialization of high-nickelization and silicon-based anodes has accelerated, and the demand for carbon nanotube conductive agents has increased. Reported by Nick Wang AOTELEC BATTERY EQUIPMENT COMPANY 2020-05-05

Lithium-sulfur battery has taken an important step towards commercial viability Lithium-sulfur batteries are hailed as tomorrow's stars in battery technology. It is expected that a single charge will significantly increase the service life of mobile phones, electric vehicles and other products, and it is more environmentally friendly than current lithium-ion batteries. However, the life of lithium-sulfur batteries is not as long as that of lithium-ion batteries, and will deteriorate over time. A team of researchers at the Corkrel School of Engineering at the University of Texas at Austin has found a way to stabilize the most challenging parts of lithium-sulfur batteries, bringing the technology closer to commercial viability. The research results recently published by the research team in the "Joule" magazine show that an artificial layer containing tellurium is fabricated in situ inside the battery and covered with lithium metal, which can extend its life by four times. "The layer formed on the lithium surface allows it to operate without damaging the electrolyte and increases battery life." Said Amruth Bhargav, who and his graduate student Sanjay · Sanjay Nanda co-authored this paper. Solving the instability of this part of the battery is the key to extending its service life and promoting its application. Manselam said that lithium-sulfur batteries are currently the most suitable for devices that require light batteries. They can run for a long time on a single charge without requiring a large number of charging cycles, such as drones. But they have the potential to play an important role in expanding the use of electric vehicles and increasing the use of renewable energy. Mantheram said that the charging capacity of the positive and negative electrodes of lithium-sulfur batteries is 10 times that of today's lithium-ion batteries, which means that a single charge can provide more sustainable use. Sulphur is widely present as a by-product of the oil and gas industry, making the production cost of batteries low. Sulfur is also more environmentally friendly than the metal oxide materials used in lithium-ion batteries. Reported by Jack Yan AOTELEC BATTERY EQUIPMENT COMPANY 2020-4-29