How to choose a lithium battery

Introduction How to choose a lithium battery Summary: Lithium battery is a modern high-performance rechargeable battery. It generally uses materials containing lithium elements as electrodes. Compared to lead-acid batteries, lithium batteries are lightweight and self-

How to choose a lithium battery

Summary: Lithium battery is a modern high-performance rechargeable battery that generally uses materials containing lithium elements as electrodes. Compared to lead-acid batteries, lithium batteries are lightweight, have low self-discharge rates and have no memory effect. However, there are also disadvantages such as poor security, high production requirements and high costs. When purchasing lithium batteries, you should consider issues such as appearance, capacity, protection circuit, brand, etc. Then let's take a look with the editor. Advantages of lithium batteries

1. The voltage platform of lithium batteries is high. The average voltage of a single battery is 3.7 V or 3.2 V, which is approximately equal to the series voltage of three nickel-cadmium batteries. or nickel-metal hydride batteries, making training easiern of a power supply.

2. Compared to batteries, lithium batteries have high energy density. It has a high storage energy density, currently reaching 460-600 Wh/kg, approximately 6-7 times that of lead-acid batteries.

3. Compared to lead-acid batteries, lithium batteries are lightweight. The weight of the same volume is about 1/5 to 6 of lead products.

4. The life of lithium batteries is relatively long, and the service life can reach more than 6 years. Lithium iron phosphate battery as positive electrode can be charged and discharged with 1CDOD, and there. is a record for using 1,000 times.

5. She has high power endurance. The lithium-ion iron phosphate battery used in electric vehicles can achieve a charge and discharge capacity of 15-30°C, making it easier to start and accelerate at high current.

6. Low self-discharge raterge and no memory effect. It is often used to power everyday electronic products.

7. Lithium batteries have strong adaptability to high and low temperatures and can be used in the environment of -20℃ to 60℃. After technological treatment, they can be used in an environment of -45 ℃. .

8. Green and environmentally friendly, regardless of production, use or disposal, it does not contain or produce toxic and harmful heavy metal elements and substances such as lead, mercury and cadmium .

Disadvantages of lithium batteries

1. Lithium batteries have poor safety and explosion risk.

2. Lithium cobalt oxide lithium batteries cannot be discharged at high currents and have poor safety.

3. Lithium batteries must have circuit protection to prevent the battery from beingoverloaded or discharged.

4. The production requirements are high and the cost is high.

How to choose lithium batteries

1. Look at the appearance

Appearance refers to the appearance, construction, size and construction of the lithium battery. . Check whether the shell's seams are wide, whether there are any burrs, whether there are oil stains, and whether it feels good to the touch. Advanced technology is very comfortable to the touch. After polishing, the material polished with rubber oil not only feels good. good, but also has strong insulating properties.

2. Check to see if the capacity is clearly marked.

Lithium batteries without clearly marked capacity are likely to be junk batteries reassembled using substandard battery cells or recycled battery cells. There are many cheap lithium batteries on the market.arché, made from recycled battery cells or disassembled battery cells. Although their price is cheap, they have a short lifespan and unstable quality can damage equipment or even explode.

3. Look at the protection circuit.

The characteristics of lithium batteries determine that lithium batteries must have a protection plate to prevent overcharge, overdischarge, short circuit, etc. Lithium batteries without protective plates will deform and leak, risking explosion. Facing fierce price competition, various battery packaging manufacturers are looking for cheaper protection circuits, or simply omitting this device, leaving the market flooded with lithium batteries with the risk of explosion. Of course, in fact, consumers cannot tell whether there is a protective circuit board from the appearance, so it is betterto choose a reputable merchant to buy it from.

4. Look at the brand

There are many brands of lithium batteries, but the quality is difficult to determine from appearance. In this case, everyone should do more research before choosing and check the manufacturer's information online. Generally speaking, professional manufacturers are more reliable than small workshops, and manufacturers who have been in business for a long time are more trustworthy than those who have just entered the field.

Lithium iron phosphate batteries are good, safe and have a high cycle count of 2000 times. Of course, they are expensive. Lithium polymer batteries only have six or seven hundred times that. It's a thing. Nowadays, many people make lithium phosphate batteries, which is not good to put it simply, no matter how good the product you use, it is not good if the rest is usedby. others. At present, there are basically no disassembled lithium batteries. If purchased correctly, the value for money is very good.

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