Mar 11, 2022 | Company News
What is a lifepo4 battery?
Lithium iron phosphate power battery is a secondary battery, the main direction is power battery, which has a great advantage over NI-H, Ni-Cd battery, and lead-acid battery.
Lithium iron phosphate power battery eight advantages
1. Super long life, the cycle life of the long-life lead-acid battery is around 300 times, the highest is 500 times, while the Lithium iron phosphate power battery produced by Guangzhou Fengjiang Battery New Technology Co. The same quality of the lead-acid battery is “ new half-year, old half-year, maintenance, and half year ” at most 11.5 years time, while Lithium iron phosphate power battery in the same conditions of use, will reach 7-8 years. Comprehensive consideration, the performance-to-price ratio will be more than four times that of lead-acid batteries.
2. Use of safety, lithium iron phosphate completely solve the problem of lithium cobalt and lithium manganese acid safety hazards, lithium cobalt and lithium manganese acid in a strong collision will produce an explosion on the safety of consumers’ lives, while lithium iron phosphate to go through rigorous safety testing even in the worst traffic accidents will not produce an explosion.
3. 2C high current fast charge and discharge, in the special charger, 1.5C charge within 40 minutes can make the battery full, starting current up to 2C, while lead-acid batteries do not have this performance.
4. High-temperature resistance, lithium iron phosphate electric peak of 350 ℃ 500 ℃, while lithium manganate and lithium cobalt acid only in about 200 ℃.
5. Large capacity.
6. No memory effect.
7. Small size and lightweight.
8. Green environmental protection.
Lithium-iron battery characteristics
High-efficiency output: standard discharge 25C, continuous high current discharge up to 10C, high-efficiency output: standard discharge 2~5C, continuous high current discharge up to 10C, instantaneous 10C pulse discharge (10sec) up to 20C20C. pulse discharge (10sec) up to 20C. excellent service life, 500 times return lap its discharge capacity is still greater than 95% times return lap. 95%. Excellent service life, with a discharge capacity of more than 95% after 500 cycles. High safety, even if the battery is damaged internally or externally, the battery will not burn or explode. High safety, even if the battery is damaged internally or externally, the battery will not burn or explode. Good heat resistance, and can withstand charge and discharge rates of 3~5C or even higher. 3~5C, good heat resistance, and can withstand charge and discharge rates of 3~5C or even higher.
Good performance at high temperature: when the external temperature of the working environment is 65℃65℃Good performance at high temperature: when the external temperature of the working environment is 65℃, the internal temperature will be as high as 95℃, the temperature of the battery at the end of discharge can reach 160℃ but the structure of the battery is safe and 160℃, 95℃, the temperature of the battery at the end of discharge can reach 160℃ but the structure of the battery is safe and intact. No damage even after over-discharge to zero volts. No damage even after over-discharge to zero volts. Rapidly rechargeable. Quickly rechargeable. Lithium-iron batteries are made without the use of rare metals, allowing for significant cost reductions. No rare metals are used as raw material for lithium-ion batteries, allowing for significant cost reductions. No pollution to the environment. No pollution to the environment.
Mar 10, 2022 | Company News
Use in a safe environment
Please charge within a temperature of 0-45°C; and note that the charging table or platform is heat and temperature resistant; when charging, the battery should not be placed near or directly on flammable materials such as
Paper, plastic, carpet, vinyl, leather, wood, or directly in a model car or vehicle when charging.
Separate the positive and negative terminals
Do not reverse the positive and negative terminals as this can cause a short circuit which is extremely dangerous.
Use a dedicated charger
NiCd (NICD), NiMH (NIMH) or other types of battery chargers should not be used to charge Li-Polymer (LIPO) batteries.
Use a dedicated LIPO charger.
Do not overcharge
Do not exceed 4.25V per fully charged cell
Do not overcharge
Do not overcharge the battery. The voltage at which each cell is discharged should not be less than 2.75V. Overcharging can damage the battery.
Prevent the battery from overheating
At no time should the battery cells be allowed to overheat. Cells at temperatures up to 60°C can be a safety hazard and burn straight out.
Prevent the battery from getting wet
Do not keep the battery close to liquids or store it in a damp place; do not keep the battery close to sources of goods such as open flames or heaters.
Mar 9, 2022 | Company News
Lithium batteries are an increasingly widely used energy storage and conversion device, because of their excellent electrochemical performance to achieve such a small – medium – large market application scenario with the times, when we talk about the correct use of lithium batteries, usually refers to Small applications, i.e. consumer electronics, such as smartphones and laptops. Because medium and large applications are based on small application technology, so small applications have common characteristics, while medium and large applications are much more complex, usually, medium applications are in new energy vehicles, generally we call them power batteries; large applications are usually in base stations, generally we call them energy storage batteries. So when we talk about the “lithium battery use”, the lithium battery is limited to small applications in line with people’s customary understanding.
Lithium batteries work on the principle of charging to store energy and discharging to convert it into other energy and release it. When neither charged nor discharged, they are in an idle state. Therefore, the correct use of lithium batteries has three main aspects: correct charging, correct discharge and correct maintenance.
The correct way to charge lithium battery
Grasp the time to prevent overcharging. The right time to do the right thing, although, the lithium battery itself has excellent electrochemical properties, however, anything that deviates from the equilibrium state will be a safety hazard. To elaborate.
1. Charge when you charge. In the early days of smartphones, every mobile phone manufacturer tended to emphasise the use of original chargers (including charging cables) to charge power-using devices out of the initial desire to protect their interests, with some manufacturers designing special data cables and not supporting other chargers (including charging cables). Later, as smartphones and laptops became more and more widely used, it became clear that this was a cocoon, so now everyone has basically unified the standard, and one charger/cord is able to charge different brands and nature of electrical appliances. With the convenience of charging, one of the things that users need to be aware of is to try to keep the battery with as much power as possible for normal use at all times. Under normal circumstances, when the power is too little, mobile phones and laptops will have a reminder, then you need to make up the power in time, although the power is too low will not lead to direct safety accidents, but overuse, over time will cause damage to the battery structure.
2, full can be. Li-ion battery cells are also made up of many components inside, new batteries are fine, if they are used for a longer period of time, it is possible that the function of which components will decline, and therefore the risk of overcharging safety will occur. Samsung and Apple have been exposed to typical accidents, a few of which are due to the owner of the appliance sleeping with the phone on the bedside charging, which eventually led to combustion and explosion.
3. Do not use two things at once. I have experienced, while charging while using the phone, especially when playing games is very easy to feel the phone heat, the reason is also very simple, the phone is equal to playing two jobs at the same time, which makes it have to pay more than times the labor, the body will naturally heat up.
The correct way to discharge lithium batteries
Charge in time to prevent over-discharge. The average mobile phone user is not aware of the dangers of over-discharging, as there are usually no reports of safety incidents. Moreover, some people even believe that regular deep discharge is good for maintaining the performance of the battery. This is not the case, as the memory effect of Li-ion batteries is negligible and there is no such thing as deep discharge to eliminate the memory effect. Theoretically, the total cycle life of a Li-ion battery is greater with deep discharge, but the risk is that over-discharging the battery will cause the battery voltage to be too low to charge properly, and sometimes it will take a long time to boot up, or even fail to boot up. The lesser of two evils, a shorter life is better than no use, so we advise users of mobile phones and laptops not to use them often enough to black out.
Proper maintenance of lithium batteries
The temperature is appropriate to prevent hot and cold. The aim of daily maintenance is to keep the lithium battery in a suitable environment so as to delay the ageing of the battery. In fact, one of the parameters of the lithium battery is the appropriate temperature design, relatively speaking, the temperature is not a big problem, but if placed in a higher temperature, as the saying goes, the opposite is true, it will also produce safety problems. If you put the lithium battery in water or near an ignition source, it is already out of the topic of “maintenance”, so what should be done in a normal environment? In terms of water to prevent moisture and heat to prevent exposure to the sun. Therefore, the appropriate environment for the daily maintenance of lithium batteries should be four words: ventilation and shade. These four words should be followed regardless of whether the lithium battery is left idle on its own or in an appliance with electricity to be used.
In the correct use of lithium batteries, lithium battery charging method is the most important, because the incorrect charging method will lead to safety problems, while the discharge and daily maintenance affects only the service life of lithium batteries, lithium batteries themselves are also a kind of consumables, no matter what approach we take can not avoid its eventual loss, but we use the correct method to slow down its aging.
Mar 4, 2022 | Company News
18650 power lithium battery is now widely used in the electronics market, loved by customers of high rate electronic products, in fact, many people still do not know much about 18650 power lithium battery, then we can take the next amount of lithium battery manufacturers to understand the 18650 power lithium battery it.
The advantages of 18650 lithium battery
Usually think of the lithium battery no-load voltage to 3.0V below the electricity used up (the specific value needs to see the threshold value of the battery protection plate, for example, as low as 2.8V, there are also 3.2V). Most lithium batteries cannot be discharged below the no-load voltage of 3.2V, otherwise too much discharge will damage the battery (usually lithium batteries on the market are basically used with a protection board, so too much discharge will also lead to the protection board can not detect the battery, and thus can not charge the battery).
4.2V is the highest limit of battery charging voltage, usually think of lithium battery no-load voltage charged to 4.2V is considered full of electricity, battery charging throughout the process, the battery voltage in 3.7V gradually rise to 4.2V, lithium battery charging can not be no-load voltage charged to more than 4.2V, or it will also damage the battery, which is the unique place of lithium batteries, usually 18650 lithium battery has the following advantages.
1, the use of a wide range of coverage
Laptop computers, handheld walkie-talkies, portable DVDs, instruments, audio equipment equipment, models, toys, surveillance cameras, digital cameras and other electronic equipment.
2, Series connection
Can be connected in series or in parallel to form an 18650 lithium battery pack.
3, Small internal resistance
The internal resistance of polymer cells is smaller than that of liquid cells under normal circumstances, and the internal resistance of domestic polymer cells can even be as low as 35mΩ, which greatly reduces the self-consumption of the battery and extends the standby time of mobile phones, and can fully meet the international standard. This kind of polymer lithium battery that supports large discharge current is a good choice for RC models and has become the most promising product to replace NiMH batteries.
4, No memory effect
It is not necessary to empty the remaining power before charging, which makes it convenient to use.
5. High voltage
The voltage of 18650 lithium battery is usually at 3.6V, 3.8V and 4.2V, much higher than the 1.2V of NiCd and NiMH batteries.
6, High safety performance
18650 lithium battery has high safety performance, no explosion, no combustion; non-toxic, non-pollution, certified by RoHS trademark; various safety performance in one go, the number of cycles is greater than 500 times; good high temperature resistance, discharge efficiency of 100% under 65 degrees. To prevent the short-circuit phenomenon of the battery, the positive and negative poles of 18650 lithium battery are separated. Therefore, the possibility of short-circuiting is reduced to a minimum. A protection plate can be added to avoid overcharging and over discharging of the battery, so that the service life of the battery can be extended.
7, Long service life
The service life of 18650 lithium battery is quite long, and the cycle life can reach more than 500 times in normal use, which is more than twice as long as ordinary batteries.
8, Large capacity
18650 lithium battery capacity is generally 1200mah ~ 3600mah, while the general battery capacity is only about 800, if the combination of 18650 lithium battery to become 18650 lithium battery pack, that 18650 lithium battery pack is casually can break through 5000mah.
Mar 4, 2022 | Company News
Lithium-ion polymer rechargeable battery packs are used in
1. The toy and electric vehicle industry, such as electric remote control cars, electric intelligent robots. Many toys that require high power are used in lithium-ion polymer rechargeable battery packs.
2. Electronics industry, such as wireless Bluetooth headphones, wireless audio, handheld automatic vacuum cleaner.
3. Solar lighting industry, for example, solar street lights, solar garden lights, solar lawn lights, etc.
Advantages of polymer lithium-ion rechargeable battery pack.
1. Good safety performance
Polymer lithium battery in the structure of the choice of aluminum plastic soft packaging, different from the plastic shell of the liquid battery cells, if the occurrence of safety hazards, the liquid battery cells are prone to explosion, while the polymer battery cells will at most only gas drum.
2. Thin and small, can be made thinner
Ultra-thin, the battery can be installed into the credit card. Ordinary liquid lithium battery choose to customize the shell first, then plug the positive and negative village material method, thin thickness to do below 3.6mm there is a technical bottleneck period, polymer cells will not have this problem, the thin thickness can be done below 1mm, to meet the direction of the current demand for mobile phones.
3. Customisable shapes
Manufacturers do not need to stick to standard shapes and can economically make them into the right size. Polymer batteries can be increased or reduced in thickness to develop new cell models according to customer needs, at a low price, and with a short molding cycle.
4. Simple design of protection plates
Given the choice of polymer materials, the cells do not catch fire or explode, and the cells themselves have sufficient safety performance, so the protection circuit design of polymer batteries can consider ignoring PTC and fuses, thus saving battery costs.
