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The traditional 18650 battery has a mature supporting industrial chain and low cost. It is an ideal lithium-ion battery and has been widely used in the field of consumer electronics. However, the 18650 battery has a small capacity. When used in the field of power batteries, it often requires tens of thousands of single cells to be combined into a battery pack. This has led to a significant increase in the management difficulty of the battery pack. Therefore, under the leadership of Tesla, it has set off 21700 replaces the storm of 18650 batteries. Compared with the 18650 battery, the 21700 battery has a higher capacity, reduces the number of single cells in the battery pack, reduces the complexity of...

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Remote control electric skateboard is a kind of highly entertaining sports equipment, which is very popular among young people in Europe, America and other countries. This project has the following functions and features: (1) The remote control realizes automatic code matching through the single-chip microcomputer. The automatic code matching function of the remote control not only realizes the universality of the remote control, the hardware and software of the remote control are fixed and unchanged, which provides convenience for the production of enterprises and meets a remote control Only one sskateboard can be controlled. (2) Because the remote control is powered by a battery, it has very high power consumption requirements. This project adopts energy-saving technology. When there is no...

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Electric skateboard Lithium batteries are composed of positive electrode material, negative electrode material, separator, and electrolyte. 1.Among the cathode materials, the most commonly used materials are lithium cobalt oxide, lithium manganate, lithium iron phosphate and ternary lithium battery materials (a polymer of nickel, cobalt and manganese). Cathode materials occupies a large proportion (the mass ratio of positive and negative materials is 3:1~4:1), because the performance of the cathode material directly affects the performance of lithium-ion batteries, and its cost directly determines the cost of the battery. 2.Among the anode materials, the current anode materials are mainly natural graphite and artificial graphite. The anode materials being explored include nitrides, PAS, tin-based oxides, tin alloys, nano-anode materials, and other intermetallic compounds. Anode...

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BMS battery management system (English full name: battery management system), the main function of BMS is to maintain and manage battery cells, provide protections for batteries such as overcharge, overdischarge, and overcurrent, extend battery life, and enhance battery stability after grouping It can monitor battery status, collect and store information in real time, and process information during battery operation, exchange information with external devices, and solve the key issues of safety, ease of use and service life of the lithium battery system. In layman's terms, BMS It is a battery pack control management system. Three core functions of BMS: 1.Cell monitoring. Lithium batteries will have temperature, voltage, current and other changes during operation. BMS can more accurately reflect the current...

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What is surfboard ? Land surfboard, Surfskate, as its name implies, is a skateboard that simulates surfing on the sea, or surf training device, which allows surfers to glide on land indefinitely. Say goodbye to traditional skateboards that use their feet on the ground and rely on left and right tilt changes to achieve advancement. The spring structure and the specially designed thruster with the front axle can allow the skateboard to incline at the extreme bending and bring the sense of weightlessness to simulate surfing. Because of the great [controllability] with the same soft wheels as the longboard, it has a high grip performance, is less prone to injury than traditional skateboards, and is easier to get started quickly....

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