EV battery
Lithium battery charge and discharge resistance consistency is what?
by:Vglory
2020-12-06
Source: 2020 -
04 -
19 20:51 hits: what is the consistency of the lithium battery charge and discharge resistance?
1.
Lithium battery internal resistance as small as possible.
This parameter changes at any time with the load weight, temperature and other factors.
Internal resistance is smaller, the battery can charge and discharge rate is higher, 18650 common about 50 m Ω, internal resistance of the battery power about 15 m Ω type 18650 battery.
Want to know how much resistance need to use special instruments, ordinary multimeter is not needed.
2, lithium battery internal resistance, using the same material, the same process to produce the batteries in the capacity, internal resistance, charge-discharge curves of consistency, the higher the better.
Whether large-scale battery assemble the battery pack is crucial.
The higher the battery pack, the greater the consistency requirements.
Lithium battery test 3.
According to the different application field, a detailed analysis of each parameter: mobile phones and tablets of lithium batteries, lithium battery of laptop computers and mobile power supply, electric bicycle lithium batteries, lithium batteries of electric cars.
Charging of lithium battery and lithium battery discharge on all electrical performance tests must be faced with a problem, only safe battery can guarantee the quality of lithium battery factory, reduce customer complaints is in each battery factory to do one thing.
We know that the commonly used lithium battery energy high, long life, high rated voltage, high power endurance, low self-discharge rate, light weight, high and low temperature, strong adaptability, green environmental protection, convenient production, now we all aspects of life cannot leave the electronic equipment, we often use the energy source of the electronic equipment is mainly used in lithium batteries.
Now lithium-ion batteries used by a lot, from the combination of lithium battery to use has a certain way, we will learn about lithium battery.
A lithium-ion battery pack, lithium battery production steps of manufacturing program lithium battery materials: the positive and negative materials and diaphragm paper.
Production steps pulping, the positive and negative active material to mix, this time we need to use special materials mixing, and then tell stir to mix well.
2, metal foil surface to be coated with paste and drying, we do on the positive and negative plates are on the system.
3, the assembly, the assembly method is to a positive one film a negative film order, from top to bottom in turn placed, the battery machine winding, and then through a series of processing, so that the lithium batteries, lithium batteries assembled into lithium-ion battery pack.
Second, the use of lithium-ion batteries note 1.
About lithium battery pack, the first thing to note is, and the battery wires must be strong, copper wire must avoid cross and collision.
If the copper wire cross collision, will cause damage to the lithium battery controller.
2.
When wiring, be sure to pay attention to lighting the wait time.
This time is set up by the controller.
3.
Lithium-ion battery pack is not suitable for assembly in the evening, as far as possible to assemble in the daytime.
4, the use of lithium battery and orientation are required to avoid collision and open circuit phenomenon, the battery must be strong, avoid loose phenomenon.
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