Each packaged lithium battery cell is inserted into a vertical cabinet type lithium battery forming machine (on the capacity division cabinet). There are many vertical cabinets like this in battery cell factories, arranged in rows. contain several hundred cells, or hundreds of test points. By dividing the capacity, the quality of the battery cell is determined. After the lithium battery cell is produced, it is "charged" and is not in a "depleted state", but needs to be "activated" before use.
The success is that the battery after injection is activated to have the capacity to store electricity. Capacity classification is to classify formed batteries according to their 1C discharge capacity to meet different capacity requirements. East. Lithium Ion Battery Secondary Test Equipment
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Each channel can perform battery performance tests on a set of finished batteries. Single test channel adopts modular combination. Each module can have an independent current limit, which makes users feel more comfortable when expanding channels and maintaining equipment. is completely independent and does not interfere or affect each other. Even if one of the channels does not work properly for some reason, it will not affect the normal operation of the other channels.
Battery clamp: each battery. The clamps are designed using the internationally popular four-wire principle, which prevents the internal resistance of the tester from superimposing the internal resistance of the battery, making the results ofs more precise tests. The pliers have beautiful appearance, strong corrosion resistance. easy adjustment and reliable contact.
Baidu Encyclopedia - Battery Capacity Separation Cabinet
How are the female employees in the chemical workshop of the lithium battery factory
< p>1. Dough Making: Special Use. The solvent and binder are mixed with the powdered positive and negative active materials respectively, and after uniform stirring, the suspended positive and negative materials are manufactured.
2. Coating: via automatic coating machine. The positive and negative electrode slurries are evenly coated on the surface of the metal sheet, and then automatically cut into positive and negative electrode pieces after automatic drying.
3. : press the piece of positive electrode - separator - negative electrode. The diaphragm leaf is rolled up and down, injected with electricitytrolyte, sealed and soldered to the positive and negative tabs, which completes the battery assembly process and results in the finished battery.
4. Training: The finished batteries are placed in the testing cabinet for charging and discharging testing, and the qualified finished batteries are selected before leaving the factory
Detailed information.
Lithium batteries are widely used in hydropower, energy storage systems such as thermal, wind and solar power plants, uninterruptible power supplies for substations and telecommunications, as well as electrical tools. , electric bicycles, electric motorcycles, electric vehicles, military equipment, aerospace and other fields
Lithium ion. Batteries have been widely used in portable devices such as laptops, cameras and mobile communications due to thetheir unique performance advantages. The developed large-capacity lithium-ion battery has been tested in electric vehicles and will become one of the main power sources for electric vehicles in the 21st century and will be used in satellites, aerospace and energy storage .
With the shortage of energy and the pressure of environmental protection in the world. Lithium batteries are widely used in the electric vehicle industry, especially the emergence of lithium iron phosphate batteries, which has promoted the development and application of lithium battery industry.
Baidu Encyclopedia - Lithium Batteries
Baidu Encyclopedia - Lithium-ion Batteries
How to assemble lithium batteries yourself
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Lifestyle Good habits, high awareness of health management.
1. Good lifestyle habits: employees of the usi chemical workshopne of lithium batteries must adhere to strict work systems and living habits, such as regular work and rest, healthy diet, etc. the chemical workshop of the lithium battery factory The employees remain in good health.
2. High health management awareness: Lithium battery factories will conduct health management and health education for employees to improve their health awareness and self-protection abilities, thereby reducing physical discomfort employees.
The formation process of lithium batteries generally requires an amount of current and duration
1. Making the paste:Use special solvents and adhesives The agent. is mixed with the positive and negative electrode powder active materials respectively, and after uniform stirring, the sus-shaped positive and negative electrode materialspension are manufactured.
2. Coating film:The positive and negative electrode slurries are evenly coated on the surface of the metal sheet through a dynamic coating machine, then dynamically dried and then positive sheared. and negative pole pieces.
3. Assembly:In the order positive electrode sheet - separator - negative electrode sheet - separator from top to bottom, the processes include winding, electrolyte injection, sealing and welding. of positive and negative electrode tabs, that is, complete the battery assembly process and manufacture the finished battery.
4. Training:Put the finished battery into the testing cabinet for charging and discharging testing, and select qualified finished batteries before leaving the factory.
Notes on lithium batteries:
First, batteries readhium-ion can be seen everywhere in people's lives, including various portable electronic products, vehicle GPS, etc. Lithium-ion batteries have become tools to maintain these important parts of the operation. Keeping lithium-ion batteries properly charged and discharged can extend battery life. Keeping the lithium-ion battery power between 10% and 90% is beneficial to protect the battery. This means that when charging batteries of digital products such as mobile phones and laptops, it is not necessary to reach the maximum value.
If digital products equipped with lithium-ion batteries are exposed to sunlight or stored in hot cars, it is best to keep these products turned off because if the operating temperature exceeds 60 degrees Celsius, the lithium battery -ion will accelerate aging. Battery charging temperature rangelithium battery: 0 ~ 45 degrees Celsius, lithium battery dischargeThe electric temperature range is 0 ~ 60 degrees Celsius.
Second, if the cell phone battery needs to be charged every day, the reason may be that the battery is defective or it is time to "retire".
For laptop owners, it is best to remove the battery if it is plugged in for a long time (the high heat generated by the computer while in use is not good for the battery of the laptop).
Third, under normal circumstances, 50% power is most conducive to the preservation of lithium-ion batteries.
Small battery: 0.2C charged to 4.1V
Large battery: 0.05C charged to 3.45V; 0.1C charged to 3.95V; 0.2C charged to 3.95V;
It is necessary to charge with a small current at the beginning, because this is the initial film formation processSEI. You can then slightly increase the current