Technical Knowledge

1. Charging 1-1 Charging current: The charging current shall not exceed the maximum charging current specified in the specification (generally 0.5~1.0C or below), and using a charging current higher than the recommended current may cause the charging and discharging performance, mechanical performance and safety of the battery. performance issues and may cause heat or leaks. At present, the 5C current charging model aircraft battery sold in the market is not recommended to use 5C charging frequently, so as not t

The negative electrode material of lithium titanate battery has the advantages of small size, light weight, high energy density, good sealing performance, no leakage, no memory effect, low self-discharge rate, rapid charge and discharge, long cycle life, wide working environment temperature range, safety It has the characteristics of stable green environmental protection and so on, so it has a very wide application prospect in the field of communication power supply. Lithium titanate battery can be used safely i

1. The lithium iron phosphate battery pack has relatively high energy density and strong endurance, and with the application of lithium iron phosphate cathode material, the life and safety of traditional carbon anode lithium ion power lithium batteries have been greatly improved, and the preferred application in the field of energy storage. 2. The lithium-ion battery pack has a long cycle life. In the future, the shortcomings of relatively low energy density, weak endurance and high price make the application of

1. Preparation of solvent: Cyclic or chain esters such as EC, DEC, PC, DMC, etc. The earliest method for preparing EC was to use ethylene glycol and phosgene reaction, but this process flow factory has been eliminated due to low yield, high cost and serious pollution. The transesterification method is used to prepare EC, the reaction speed is improved, and the yield is also improved. 2, purification: Regarding the organic raw materials used, the purification treatment has reached the standard for the use of li

1. Add a parallel equalization circuit to each single cell of the lithium-ion battery pack to achieve the purpose of shunt. In this mode, when a battery reaches full charge first, the equalizer prevents it from overcharging and converts the excess energy into heat, continuing to charge the battery that is not fully charged. This method is simple, but it will cause energy loss and is not suitable for fast charging systems. 2. Before charging, discharge each cell one by one through the same load to the same level,

The biggest difference between new energy vehicles and traditional vehicles is that they use batteries as power drives, so the technology of power lithium batteries is the core of new energy vehicles. What is the core technology of BMS? Recently, I saw a propaganda board of a domestic company, claiming to fully master BMS software and hardware technology, reaching the world's advanced level, and adopting multiple balanced control capabilities because of the use of the underlying software such as AUTOSAR&#

1. Lithium-ion battery material processing Some materials used in secondary batteries, such as lithium ions, require special treatment. Electrodes should be processed at high speed without damaging the fragile active material. In the electrolyte, special consideration is given to preventing the occurrence of precipitation and corrosive gases. 2. Cam unit If the machine is constructed with air cylinders or AC servo actuators with a takt time of less than 1 second, it is difficult to synchronize or maintain a st

Balanced charging technologies commonly used in the balance principle of lithium-ion battery protection boards include constant shunt resistance balance charging, on-off shunt resistance balance charging, average battery voltage balance charging, switched capacitor balance charging, step-down converter balance charging, inductance balance charging, etc. When charging a group of lithium-ion batteries in series, ensure that each battery is charged equally, otherwise the performance and life of the entire group of bat

In the past few decades, the continuous rapid development of human economic activities has led to a rapid increase in the demand for electricity. A solar cell is a semiconductor device that uses the photovoltaic effect to directly convert solar energy into electrical energy, which is easy to realize grid-connected power generation or as an independent energy source. As we all know, solar cell power generation has many advantages, such as safety and reliability, no noise, no pollution, energy can be obtained anywher