Lithium battery manual method

The correct way of using the lithium battery for electric vehicles is as follows:

1, the battery does not need to "activate"

Lithium batteries do not need to be charged for more than 12 hours in the first three times, and lithium batteries have no memory.

2, battery charging

Use the charger specified by the manufacturer to charge. When charging, please pay attention to whether the charger model matches the battery model.

3, avoid high temperature charging

Do not charge the lithium battery in an environment where the temperature exceeds 40°. The high temperature will degrade the battery capacity.

4, timely charging

Lithium batteries should be used as much as possible to avoid charging, so that the battery can be recharged after each under voltage, which can greatly improve battery life.

5, storage

When the battery is not used for a long time, disconnect the battery from the whole vehicle, and add some power to the battery at intervals to avoid self-discharge of the battery or the power consumption of the protection board.

Lithium batteries are more afraid of over-discharging than over-charging. However, lithium batteries have no memory effect and can be used as needed. Do not charge the battery completely, so it is easy to over-discharge to damage the battery; do not discharge large currents. In places with large slopes, it is best to use pedal boost to avoid excessive battery current and affect battery life. For the same reason, the load specified in the specification should be avoided. The charger is generally full of protection, generally does not cause overcharging, but at night, the grid load is very light, the voltage rises very high, it is easy to exceed the self-stop voltage set by the charger, and the battery will continue to be charged. This can easily cause overcharging, and the charger should be unplugged at night.

The correct use of the lithium battery for electric vehicles is as follows:

1, the battery does not need to "activate"

The lithium battery used by the company does not need to be charged for more than 12 hours in the first three times.

2, battery charging

Use the charger specified by the manufacturer to charge. When charging, please pay attention to whether the charger model matches the battery model.

3, avoid high temperature charging

Do not charge the lithium battery in an environment where the temperature exceeds 40°. The high temperature will degrade the battery capacity.

4, timely charging

Lithium batteries should be used as much as possible to avoid charging, so that the battery can be recharged after each under voltage, which can greatly improve battery life.

5, storage

When the battery is not used for a long time, disconnect the battery from the whole vehicle, and add some power to the battery at intervals to avoid self-discharge of the battery or the power consumption of the protection board.

The specific manufacturing method of the lithium battery is as follows:

Method 1, pulping with special solvents and adhesives are mixed with powdery positive and negative polar active substances, after high-speed mixing uniform, pulp-like positive and negative polar substances.

Method 2, the coating film is uniformly coated on the surface of the metal foil, and dried to form positive and negative pole pieces respectively.

Method 3, assembly according to the positive electrode sheet - the diaphragm - the negative electrode sheet - the diaphragm is placed in the order from top to bottom, after winding to form the battery core, and then into the electrolyte, sealing and other processes, that is, complete the battery The assembly process is made into a finished battery.

Method 4: The product is charged and discharged with a dedicated battery charging and discharging device. and each battery is tested, and a qualified finished battery is screened to complete the production.

The cathode generally includes lithium cobalt, lithium iron phosphate, lithium manganese, lithium nickel, ternary materials. The negative electrode is usually graphite. When preparing the positive electrode, grind the positive electrode material, PVDF, and conductive carbon black in a certain proportion, such as 90:5:5. The grinding must be uniform, and then add NMP to make the paste, and use a scraper to scrape and coat the aluminum foil. Put it in the oven to dry and let NMP evaporate. Then put it into the vacuum oven to dry. The negative electrode is prepared by the same method, except that the material is graphite, graphite, conductive carbon black, PVDF mass ratio 93:2:5. Scraping is a technical process, and you may have repeated it many times, but the electrode material is useless. Be sure to scrape evenly.

Install battery, button battery, negative shell, steel sheet and negative electrode. Drop a few drops of electrolyte, diaphragm, positive electrode, drop a few drops of electrolyte, steel ring and positive shell. Pressurized and compacted. It can be charged and discharged after being static for more than 8 hours.

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