While hydrogen energy heating “fires” throughout Europe, many European research institutions have pointed out that the current natural gas hydrogen heating, especially green hydrogen heating, still has many problems such as high cost and limited hydrogen sources. The rapid implementation of hydrogen energy Heating is likely to lead to a substantial increase in heating costs…
An increase of 5%-15% Lithium battery cells will increase prices early next year: electric car prices may increase Since the second half of this year, the price of electric vehicle batteries has been rising. According to data, the current price of NMC (811) batteries is nearly US$110/kWh. The price in the fourth quarter is expected…
The start of another CATL project: the total investment is about 32 billion, the first phase will be put into operation in 2023 The CATL Bangpu integrated new energy industry project has a total investment of about 32 billion yuan, covering an area of about 5,500 acres. Lithium battery material It is planned to…
Continued: 4680 Battery-Battery Technology Upgrade-Single crystal anode 5.2. Single crystal anode Different from increasing the nickel element to increase the energy density, single crystallization is to increase the energy density by increasing the voltage of the cathode material: single crystal materials are more suitable for high voltage than traditional polycrystalline materials, and there is…
Continued: 4680 Battery-Battery Technology Upgrade-Cathode 5. Cathode Different electrodes are used in different products. The iron-lithium version of 4680 will be used in low-endurance models and energy storage batteries, with more cycles; nickel-manganese-lithium 4680 batteries are used in medium-endurance models and household batteries; high Nickel 4680 batteries are used in cybertruck and Semi. Tesla’s…
Continued: 4680 Battery-Battery Technology Upgrade-Silicon Anode 4. Silicon anode 4.1. Advantages Higher theoretical energy density: the theoretical maximum battery capacity of graphite anode is 372Wh/kg, and the theoretical maximum battery capacity of silicon anode can reach 4200Wh/kg. Better safety: the voltage platform of silicon is higher than that of graphite, now the anode electrode…
Continued: Tesla 4680 Battery-Battery Technology Upgrade-Part 4. 2.2.4. Actual performance of 4680 cell As the size of the battery increases, the number of batteries in the battery pack decreases, the proportion of the metal casing decreases, the proportion of materials such as the cathode electrode and the anode electrode increases, and the energy density…
Continued: Tesla 4680 Battery-Battery Technology Upgrade-Part 3. 2.1.4. Opportunities Brought by All Tabs From the previous pulse laser spot welding of the 2170 battery to the current 4680 battery line or laser lattice, the laser welding process is improved, and the original pulse laser may be changed to a continuous laser, and the overall…
Tesla 4680 Battery-Battery Technology Upgrade-Part 2. 2.1.2. The advantages of all tabs of 4680 battery 1. Improved output power: the battery current path is widened, and the internal resistance is greatly reduced, the internal loss is reduced accordingly, and the battery power is greatly increased (6 times that of the 2170 battery). 2. Improve…
Tesla 4680 Battery-Battery Technology Upgrade-Part 1. 1. Definition The 4680 battery is a new generation cylindrical battery with a diameter of 46mm and a height of 80mm introduced by Tesla. For batteries, when the energy density is increased, the power density will decrease. The diameter of 46mm is the best choice for a cylindrical…
The new energy vehicle market has entered a steep growth curve Carbon peak & neutral China’s steel industry carbon peak implementation plan and carbon neutral technology roadmap have basically taken shape It is estimated that the sales of new energy vehicles next year will reach 5 million, and the market penetration rate will exceed…
The financing was led by Schlumberger New Energy, the world’s top energy technology service company, followed by Saudi Aramco and IDG Capital. Dr. Li Jiajie made additional investment. Under the general direction of the country’s promotion of the 30.60 dual-carbon target, accelerating energy technology innovation and promoting the development and application of key technologies have…