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What is lithium battery?

Lithium-ion batteries generally use lithium alloy metal oxide as the cathode material, graphite as negative material, and non-aqueous electrolyte as the battery.

Generally speaking, the most commonly used power batteries are lithium iron phosphate battery, lithium manganese oxide battery, lithium cobalt oxide battery, and ternary lithium battery (nickel cobalt manganese ternary)

How does the lithium battery work?

During the charging process, lithium ions are separated from the positive electrode and then embedded into the graphite material of the negative electrode to form the graphite intercalation compound of lithium-ion. During the discharge process, lithium ions are separated from the graphite intercalation compound a re-embedded into the cathode material.

What are ideal applications for lithium battery?

AGM car electric motorcycle mobile energy storage power station 3C digital

electric bicycle electric vehicle forklift charging bank electric tool

What do I need to know about lithium battery charging?
  • Sequence: connect the battery and then the power supply when charging. When fully charged, unplug the power supply, and then disconnect the battery and charger. Keep the key door closed when connecting the battery to the vehicle.

  • Overcharge danger: Unplug the charger power supply after full charge, and do not charge for more than 8 hours continuously.

  • Do not charge in a sub-zero temperature environment.

  • The exclusive lithium battery charger should be used when charging, and roadside fast charging is not allowed. 48/60/72v charger cannot be mixed.

  • During the charging process, if the battery is hot, stop charging and use, and replace the battery in time.

  • The charger and battery should be far away from the bedroom, avoid combustibles, and keep dry.

How to use the battery to make its service life as long as possible?

For long service life of a battery, it is necessary to:

  • Check whether the charger parameters meet the requirements of battery charging parameters;

  • Check whether the battery and the electric vehicle match. If the new battery matches the electric vehicle, the cumulative riding time of the battery is 1.5-2 hours. If it is less than 1.5 hours, the service life of the battery will be seriously affected. The shorter the accumulated riding time, the shorter the service life of the battery;

  • In the process of electric vehicle starting, slow starting is helpful to prolong the service life of the battery;

  • In the process of battery use, the maintenance of a single charge and single discharge every six months is helpful to extend the service life of the battery.

Is it necessary to charge the battery before using the new electric vehicle?

Generally, there is no need. Although there is a certain period from the factory to the beginning of use, the battery has a certain amount of self-discharge, but the self-discharge capacity is not large, only the mileage is a little less at the first time, and the remaining 20% ~ 30% of the power can be used for recharging. It is required to cut off the power supply of the electric door lock, and the battery must be fully charged at one time.

If you are away on business for a long time, what should be done to the battery when the electric vehicle is not in use?

The storage battery must be fully charged before storage, and the battery must be supplemented once a month in the future, to avoid the battery capacity decline due to the long-term battery short of power storage due to the sulfation of the plate, affecting the service life of the battery, or even scrapping.

What will happen to electric vehicles in winter and how to avoid them?

In winter, when you use electric vehicles, you will feel that the continuous mileage will decrease significantly (more obvious in the North), which is a normal phenomenon. Because of the low-temperature environment, the battery activity is reduced, resulting in the low-temperature environment of the battery capacity decreased, in the normal temperature environment, the battery capacity returned to a normal state. Therefore, consumers should avoid leaving the electric vehicle outdoors overnight or charging in a low-temperature environment when using it in winter.

What should be paid attention to when using electric vehicles in summer?
  • Avoid exposure to the sun under high temperature and strong sun, and do not charge in the high-temperature environment;

  • Avoid charging immediately after driving under high temperature, and prevent charging time too long (about 8 hours in normal condition);

  • When the battery is charged, if the power box is hot or does not turn to green light, it is necessary to check and maintain the battery or charger in the battery store or after-sales service network of our company.

Can you continue to ride an electric vehicle when it is low?

No, you should charge in time when the battery is low. Although the battery has voltage limiting protection by the controller, the battery voltage rises after a moment of static, and it can ride for a short time. Such use will cause the greatest damage to the battery, which will cause battery over-discharge and seriously affect its service life.

What harm does an electric vehicle battery have when overcharged?

If the poor quality charger, fault charger, charger with high maximum charging voltage parameters or too long charging time are used, the water loss of the battery will be aggravated, the electrolyte will dry up prematurely, which will easily lead to the deformation of charging drum and the service life of the battery will be terminated in advance.

Is the battery a problem for electric bicycles?

not always. When the battery is aging and its capacity is reduced, the driving range will be shortened. However, the following problems that are not related to the battery will also lead to the shorter driving range:

  • The mainline is too thin and the tire pressure is insufficient;

  • When the efficiency of the motor decreases, the useless work is increased and the power consumption is wasted, which shortens the driving mileage;

  • The poor quality charger undercharges the battery every day, resulting in the insufficient capacity of the battery, resulting in a decrease of the continuous mileage day by day;

  • The bad controller makes the starting current of the electric vehicle too large, which makes the driving mileage of the electric vehicle short;

  • The friction coefficient of each moving part of the inferior electric vehicle is too large, or the mechanical transmission resistance is too large, which can also cause waste of electricity, and lead to shorter driving mileage, etc;

What are the safety precautions when using the battery?
  • The storage battery shall not be close to an open fire or high-temperature heat source, shall not be thrown into the fire or immersed in water, and shall not be directly exposed to the sun or charged.

  • The battery shall not be placed in a closed container and shall be well ventilated.

  • If the battery shell is found to be cracked or leaking, the battery must be replaced.

  • The electrolyte is an acidic solution. If it gets on the skin and clothes, it should be washed with plenty of water immediately. If it is serious, it should be sent to the hospital for treatment.

  • The battery shall not be short-circuited or used upside down.

Why is the battery

The lead-acid battery without a battery box will not be "gas explosion", but the reason why the battery will "gas explosion" after being put into the battery box is that:

  • The power supply box is too sealed, and the hydrogen produced at the end of battery charging cannot escape;

  • The power connection line is loose, aged, or exposed. When the key is turned on and discharged, sparks are generated in the circuit due to uneven road vibration to ignite hydrogen;

  • The fuse holder on the power box is loose, which causes heat or sparks during the battery charging and discharging process, which ignites hydrogen and causes gas expansion and breaks through the battery cover;

Preventive measures:

  • The power box should not be too sealed in the design. Some convection ventilation holes with a diameter of about 1cm should be set at the upper and lower parts of the battery box to facilitate the discharge of gas generated during charging;

  • If there is no ventilation hole in the design of the power box, the ventilation hole must be reserved during the installation;

  • Regularly check the power wiring to prevent loosening, aging, or exposure;

  • If the fuse holder is loose and aged, replace it in time

When is the best time to charge the electric vehicle battery?

When the pointer of the electric power indicator on the electric vehicle is at or near the lowest position, charging the electric vehicle is the best, which is beneficial to the service life of the battery. If the daily driving mileage is within 5-10km, it is recommended that you do not charge every day, that is to say, do not short mileage and charge frequently. Otherwise, the service life of the battery will be terminated earlier.

Is it possible to replace or use one or several of the batteries?

When one or several batteries of your electric vehicle are out of order, the battery should be replaced as a whole. The battery with fault should not be replaced separately. Only use special equipment for testing when maintaining the battery. Especially remind you: one or several batteries should not be used for other purposes!

Can the charger be carried with the car?

No, the electric vehicle often vibrates due to uneven road surface during use. If the charger vibrates, its component parameters will drift, which will affect the charging performance and even damage the battery (undercharged or drum charged battery). Therefore, it is strictly forbidden to carry the charger with the vehicle.

What is the core device of electric vehicle?

The four major parts of an electric vehicle: battery, motor, controller, and charger are the core (main device part) of the electric vehicle. The best performance of electric vehicles can be brought into full play only when they are used together reasonably. No matter which device has problems or the relevant parameters do not meet the requirements of mutual configuration, the electric vehicle will have a short driving range and the battery life will be terminated in advance. So it's not all about batteries that electric vehicles don't run long.

What are the characteristics of sealed lead-acid battery for?
  • Large capacity and high specific energy: it is made by special technology, the capacity is more than 100%, and the specific energy is 35-40wh / kg;

  • The self-discharge rate is very low, using high-quality alloy grid and ultra-pure electrolyte, the self-discharge rate is very small and the water loss is very small;

  • Long cycle life: high efficiency of sealing reaction and long life. The cycle life of 25 C in normal use exceeds the national standard. According to the regulations, the service life is longer;

  • Safe and reliable: adopt the safety valve with unique design, durable service time, and superior safety performance;

  • Fully sealed leak-proof structure: the battery can be used in any direction (except inversion), which has the advantages of fully sealed valve control and maintainability;

  • Optimized design: adopt button type or plug-in cover plate to make battery maintenance more convenient, regular maintenance can greatly extend the service life of battery;

  • It can be used in various forms: floating and recycling.

Tianneng Battery Group
The way we power.
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No. 18 Baoqiao Road, Changxing County, Huzhou City, Zhejiang Province, China
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