18650 battery 3.7v 2000mah

　　18650 battery PACK process key points summary analysis details

　　The 18650 lithium battery pack process is mainly formulated according to the PACK battery structure. Most of the 18650 lithium battery pack process features are similar. 18650 lithium battery PACK max

　　The 18650 lithium-ion battery pack process is mainly formulated according to the PACK battery structure. Most of the 18650 lithium-ion battery pack process features are similar.

　　The biggest feature of 18650 lithium-ion battery pack is its flexible combination. Most of the continuous orders can be completed semi-automatically. It is conceivable that the process of 18650 lithium-ion battery pack is becoming more and more simple now.

　　A general 18650 lithium-ion battery PACK battery pack includes: 18650 batteries, battery protection boards, connecting nickel sheets, lead-out nickel sheets, green paper accessories, insulating paper, wires or plug wires, PVC outer packaging or shell, output (including connection Device), key switch, power indicator, and auxiliary materials such as EVA, barley paper, plastic bracket, etc. These items together form a PACK, and most of the 18650 battery PACKs are of the same type.

　　1. What should be paid attention to when welding 18650 lithium-ion battery pack process

　　Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charge, -40℃ 3C discharge capacity ≥70%

　　Charging temperature: -20~45℃ -Discharging temperature: -40~+55℃ -40℃ supports maximum discharge rate: 3C -40℃ 3C discharge capacity retention rate≥70%

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　　1. Pay attention to the spot welding current when welding 18650 lithium-ion batteries.

　　2. When welding 18650 lithium-ion batteries, attention should be paid to the diameter of the welding pin.

　　3. When welding 18650 lithium-ion batteries, attention should be paid to the distance between the solder pins.

　　4. Pay attention to the number of solder joints when welding the 18650 lithium-ion battery pack process.

　　5. When spot welding, do not explode, do not short circuit, and do not weld falsely.

　　Low temperature high energy density 18650 3350mAh-40℃ 0.5C discharge capacity ≥60%

　　Charging temperature: 0~45℃ Discharging temperature: -40~+55℃ Specific energy: 240Wh/kg -40℃ discharge capacity retention rate: 0.5C discharge capacity≥60%

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　　2. What should be paid attention to when soldering 18650 lithium-ion battery pack process

　　1. Pay attention to the diameter of the tin wire when soldering 18650 lithium-ion batteries.

　　2. When soldering 18650 lithium-ion batteries, attention should be paid to the constant and stable soldering temperature.

　　3. When soldering, it should be noted that the soldering time should not exceed how many seconds.

　　4. The soldering iron tips used for soldering different 18650 lithium-ion battery surface materials are also different.

　　3. What should be paid attention to when the 18650 lithium-ion battery pack process is assembled

　　1. Set the internal resistance, voltage and self-discharge of the battery.

　　2. Set the channel and grade.

　　3. Set the number of groups for each channel.

　　4. If there is any defect, it should be isolated and analyzed in time.

　　4. Multi-parallel and multi-string 18650 lithium-ion battery pack design techniques

　　1. Adopt the principle of giving priority to easy operation, that is, it is easy for employees to operate.

　　2. Take the principle of prioritizing operation safety, that is, it is not easy for employees to short-circuit or have good preventive measures when operating.

　　3. Adopt the principle of equipment, that is, use auxiliary equipment to complete without manual labor as much as possible, at least semi-automatic.

　　4. The packaging design should be reasonable, easy to take and put away, and don’t want the product to be out of the customer’s place for a long time.