• Large size cylindrical battery
    Apr 14,2021.

    Large size cylindrical battery

    Large size cylindrical battery "turmoil" The breakthrough of full-tab technology and the parallel ternary/iron-lithium technology have made the advantages of the large cylinder in terms of performance, cost and safety more obvious. The broadening of the application scenario boundary and the follow-up of head battery companies also allow large cylindrical batteries to regain a place in the power battlefield. After the Tesla battery day, the 4680 non-electrode (also known as all-electrode) large cylindrical technical route was proposed. Immediately afterwards, a number of OEMs and battery companies accelerated their actions in the field of large cylindrical batteries. As one of Tesla's three major power battery suppliers, CATL is also actively deploying large cylindrical batteries, mainly targeting the two-wheeled vehicle market. At the same time, it does not rule out the introduction of large cylindrical batteries into the passenger car field. In terms of high-end passenger cars, in addition to having Tesla's market endorsement, Porsche also made it clear that cylindrical batteries are an important future direction for power batteries, and it is studying high-power, high-density batteries. The clear market trend is down, and battery companies are quickly following up. In addition to Panasonic and LG have begun to deploy 4680 battery production lines for Tesla, domestic battery companies have also unveiled the progress of 4680 batteries. BAK Chief Scientist Lin Jian said that BAK is cooperating with customers on the application and development of all-tab large cylindrical batteries. 4680 battery cell samples are expected to be mass-produced within this year, and mass production is expected to start in 2023, and will be the first to be applied in the car electronics market. Ji Yajuan, director of Yiwei Lithium Energy Basic Materials and Technology Research Office, also said that the company has deployed two major models of 46800 and 46950 in large cylindrical batteries, and will gradually promote large cylindrical batteries in the market after 2023. After the completion of large-scale mass production and initial market introduction, the market competition of the large cylinder may have just begun.
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  • Celgard 2320 Trilayers Battery Separator Shipped to Russia
    Mar 28,2021.

    Celgard 2320 Trilayers Battery Separator Shipped to Russia

    Celgard 2320 Trilayers Battery Separator Shipped to Russia Really pleased to do business with Russian clients from research institude in Moscow. We make this deal in hours without too much words, just because of the trust. As trial order, they only order 4 rolls Celgard 2320 separator, if the test is good, they will order more and consider other battery raw materials next time. The Celgard 2320 is 20ummicroporoustrilayers membrane PP/PE/PP separator for secondary lithium batteries, it is same as the Celgard 2400,  Celgard 2500,  Celgard 2325, all of them are very popular in lab. Let's check some features of this separator: 1. Excellent resistance to acids, bases&most chemicals 2. Uniform pore structure with high chemical and thermal stability 3. Oxidation resistance for excellent cycling&trickle charge performance 4. PE inner layer provides high-speed shutdown 5. Zero TD shrinkage reduces internal shorting and inproves high temperature dimensional stability You will get very good packing as below:
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  • BAK overall arrangement full tab 4680 cylindrical battery
    Mar 21,2021.

    BAK overall arrangement full tab 4680 cylindrical battery

    BAK overall arrangement full tab 4680 cylindrical battery At the 2021CIBF battery exhibition that opened on March 19. Dr. Lin Jian, chief scientist of BAK Battery, revealed that BAK is cooperating with a number of domestic and overseas customers on the application and development of all-terminal large cylindrical batteries. 4680 battery cell samples are expected to be mass-produced within this year. Compared with the previous 18650 and 21700 batteries, the large cylindrical battery represented by 4680 adopts the full tab technology, which can not only increase the size of the single battery cell and increase the space utilization rate under the premise of ensuring the safety of the entire battery pack, it can also increase the mileage of the vehicle. At the same time, the full tab technology can also solve the power performance bottleneck of the cylindrical cell. This is also the main reason why Tesla has set its sights on the 4680 battery. It is reported that while BAK is strategically exploring large-size cylinders, it has also deployed full battery tab technology and formed a unique full tab technology route in 2019. In the future, full tab large cylindrical batteries for high-end models will become the core product of BAK's automotive electronics applications. As far as the industry is concerned, BAK believes that mass production of large cylindrical batteries is expected to begin in 2023, and large cylindrical batteries will be used in the car electronics market at the earliest. In terms of industrialization progress, BAK revealed that it has begun planning a mass production base for large-size cylindrical batteries, and it is expected to achieve mass production of large cylindrical batteries in the next two years. Reprinted by AOTELEC 2021-3-21
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  • AOTELEC Wish You a Happy Chinese Lunar Year of 2021
    Feb 5,2021.

    AOTELEC Wish You a Happy Chinese Lunar Year of 2021

    Happy Chinese Lunar Year of 2021 Thank you for all the valued customers, in the year of 2020, we faced terrible pandemic of COVID-19, but we still worked well and we believe that our cooperation will keep going and be better.  Here we want to inform you that the Chinese New Year holidays is coming, we will be off from 6th-20th february 2021, during this period, we may not avaible for replying you on time, but you can still contact the sales person by email. We will try best to reply you in time. Here are some FAQ about Chinese New Year: 1. Is Chinese New Year a Public Holiday? Chinese New Year is a public holiday. It is a day off for the general population, and schools and most businesses are closed. 2. What Do People Do? Many people clean their homes to welcome the Spring Festival. They put up the red posters with poetic verses on it to their doors, Chinese New Year pictures on their walls, and decorate their homes with red lanterns. It is also a time to reunite with relatives so many people visit their families at this time of the year. In the evening of the Spring Festival Eve, many people set off fireworks and firecrackers, hoping to cast away any bad luck and bring forth good luck. Children often receive “luck” money. Many people wear new clothes and send Chinese New Year greetings to each other. Various activities such as beating drums and striking gongs, as well as dragon and lion dances, are all part of the Spring Festival festivities. 3. Background According to historical documents, on the day when Shun, who was one of ancient China’s mythological emperors, came to the throne more than 4000 years ago, he led his ministers to worship heaven and earth. From then on, that day was regarded as the first day of the first lunar month in the Chinese calendar. This is the basic origin of Chinese New Year. China adopted the Gregorian calendar in 1911, so Chinese New Year was renamed the Spring Festival.
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  • Advanced methods for intelligent manufacturing of lithium battery electrodes
    Dec 23,2020.

    Advanced methods for intelligent manufacturing of lithium battery electrodes

    The expansion plan of power battery drives lithium battery equipment. The existing relatively clear battery expansion plan corresponds to a total of 198.1 billion yuan in lithium battery equipment procurement needs in 2019-2025; the average annual growth rate of lithium battery equipment investment is about 23%, and overseas equipment is higher than China. From the product level, the core equipment of the front-end process mainly includes a battery coating machine and a battery electrode roller press. Among them, the technical indicators of the coating machine include coating speed, width, thickness and precision, deviation correction, tension control and drying technology. The current localization rate has reached 70-80%, and the core components of high-precision control such as the coating head still need to be imported. Based on this, Li focused on the three major product series of Jin Yinhe lithium battery slurry twin-screw continuous automatic production line, double-sided simultaneous coating machine, and two-stage simultaneous roll-pressing and battery electrode slitting machine. Among them, the battery slurry twin-screw continuous automatic production line currently has 85 normal production lines, including models such as 65 machines, 75 machines, 95 machines, and 125 machines. Li said that the equipment's single production line requires only 1-2 people, and produces 600-2500L/h slurry per hour, with a capacity covering 1-9GWh, realizing continuous conveying and metering, with an accuracy of 0.2%, and the same capacity as the conventional mixer technology. By comparison, it can save 1.4-91.9 million kilowatt-hours of electricity per year. The Jin Yinhe double-sided simultaneous coating machine will be mass-produced and sold in 2020. Compared with equipment with the same capacity, the reduction of one layer of oven effectively reduces energy consumption and energy saving by 30-40%; at the same time, the procurement cost is reduced by about 10-20%, and the operating cost is reduced by 30% the above. In addition, the height of the equipment is reduced by 1/3, and the transition device in the unwinding and unwinding area is eliminated in the length direction, saving about 6m of length space with a single device. Finally, Li emphasized that the two-stage simultaneous roll pressing and slitting machine is designed to increase the compaction density of pole pieces and solve the problem of high-pressure rolling of pole pieces. This product is also the first domestic application to be used in the lithium battery industry; Problems such as sheet bounce and overpressure on the pole surface; in a true sense, the problem of wrinkling in the foil area of the high-speed stripe roller pressure is solved.
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  • Electric bicycle production in October increased by 30% year-on-year
    Dec 12,2020.

    Electric bicycle production in October increased by 30% year-on-year

    Electric bicycle production in October increased by 30% year-on-year On December 9, the Ministry of Industry and Information Technology issued the "Operation of the Bicycle Industry from January to October 2020". In the first October, the output of electric bicycles was 25.48 million, a year-on-year increase of 33.4%. Among them, the monthly output of electric bicycles in October was 2.499 million, a year-on-year increase of 29.9%. In terms of benefits, the operating income of electric bicycles was 75.99 billion yuan, an increase of 26.9% year-on-year, and the total profit realized was 3 billion yuan, an increase of 30.5%. Increased demand on the To B side such as shared bicycles and takeaways has boosted overall sales. Since April, the domestic electric bicycle market has recovered rapidly and started a year-on-year growth rate of 50% for 6 consecutive months. The increase in the output of electric bicycles releases the corresponding demand for lithium batteries, especially the high concentration of electric bicycle application fields such as ToB end, which is more suitable for the promotion of battery swap mode, and further increases the demand for lithium batteries. It is expected that with the emergence of the replacement wave after the transition period of the new national standard and the rapid development of superimposed sharing/replacement, the shipment of bicycle lithium battery will increase to 8.45GWh in 2020, a year-on-year increase of 55%; In 2021, the penetration rate of lithium batteries will further increase, exceeding 30%. Reported by Jack Lin AOTELEC Battery Equipment Manufacturer 2020-12-12
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  • Electric Coin Cell Crimping Machine Shipped to Khalifa University
    Nov 30,2020.

    Electric Coin Cell Crimping Machine Shipped to Khalifa University

    Electric Coin Cell Crimping Machine Shipped to Khalifa University Khalifa University of Science and Technology (abbreviated as Khalifa University, Khalifa University of Science and Technology) is named after the current President of the United Arab Emirates Khalifa (Emirate of Abu Dhabi). In early 2017, it was formed by the merger of the former Khalifa University of Science and Technology (KUSTAR), Masdar Institute and Abu Dhabi Petroleum Institute. In the 2021 QS World University Rankings, Khalifa University of Science and Technology ranked 211th in the world. AOTELEC is so pleased to cooperated with esteemed Khalif University, we sold one set of electric coin cell crimping machine to their lab, this electric crimper is mainy used for CR2016,CR2025 and CR2032 coin cell cases crimping. It has a light weight and compact size, this crimping machine also can be put inside the glove box and operated inside the box. The disassembly die is optional, if you want to open it and analyzing the battery materials after testing, we can supply this die for you, and you can easily replace the crimping die. Let’s have a look at the machine below:
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  • 304 Stainless Steel 18650 Cylindrical Battery Case with Cap Shipped to USA
    Nov 6,2020.

    304 Stainless Steel 18650 Cylindrical Battery Case with Cap Shipped to USA

    304 Stainless Steel 18650 Cylindrical Battery Case with Cap Shipped to USA The 18650 lithium battery shell has the performance advantages of lighter weight and safer. The shell of the 18650 lithium battery cases is used to hold the discharge solution and the electrode plate assembly. It should be made of materials with acid resistance, heat resistance, shock resistance, good insulation and a mechanical strength. Our 304 stainless steel 18650 battery case with cap and insulation gasket is mainly used for battery lab, you will still need cylindrical battery grooving machine to groove the case before sealing process. Today, we sold 20 sets of 18650 cases to our new client from USA, it is used for his company laboratory, include cases, cap and top/buttom gasket. The export packing for your reference:
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