Advantages of lithium-ion batteries
1. Lithium-ion batteries have a high voltage range, with a single cell having an average voltage of 3.7V or 3.2V, which is approximately equal to the voltage of three nickel-cadmium or nickel-metal hydride batteries connected in series, making it easy to form a battery power pack.
2. Compared to lead-acid batteries, lithium-ion batteries have a higher energy density. They have a high storage energy density, currently reaching 460-600Wh/kg, which is about 6-7 times that of lead-acid batteries.
3. Compared to lead-acid batteries, lithium-ion batteries are lighter, weighing about 1/5 to 6 times that of lead-acid products of the same volume.
4. Lithium-ion batteries have a relatively long service life, which can reach more than 6 years. Batteries with lithium iron phosphate as the positive electrode can be charged and discharged in 1 CDD, and there are records of them being able to be used 1000 times.
5. It has high power handling capacity. The lithium iron phosphate lithium-ion battery used in electric vehicles can achieve a charge-discharge capacity of 15-30C, which facilitates high-intensity start-up and acceleration.
6. Low self-discharge rate and no memory effect, commonly used for powering everyday electronic products.
7. Lithium-ion batteries have strong adaptability to high and low temperatures and can be used in environments ranging from -20℃ to 60℃. Through process treatment, they can also be used in environments as low as -45℃.
8. Green and environmentally friendly, it does not contain or contain any toxic or harmful heavy metal elements and substances such as lead, mercury, and cadmium, whether in production, use or disposal.
How to choose a lithium-ion battery? 1. Check the appearance.
Examining the appearance refers to checking the lithium-ion battery's shape, workmanship, size, and manufacturing process. Check the width of the seams on the casing, whether there are burrs or oil stains, and the feel of the material. Advanced manufacturing processes result in a comfortable feel; polishing with rubber oil and other materials provides both a good feel and strong insulation.
2. Check if the capacity is clearly marked.
Lithium-ion batteries without clearly stated capacity are likely to be waste batteries assembled from inferior or recycled battery cells. The market is flooded with cheap lithium-ion batteries made from recycled or salvaged battery cells. While inexpensive, they have short lifespans, inconsistent quality, and improper use can damage equipment or even cause explosions.
3. Check the maintenance circuit.
The characteristics of lithium-ion batteries dictate that they must have an external protection board to prevent overcharging, over-discharging, and short circuits. Lithium-ion batteries without a protection board are at risk of deformation, leakage, and explosion. In the face of fierce price competition, battery packaging manufacturers seek lower-priced protection circuits, perhaps even omitting this component altogether, resulting in a market flooded with lithium-ion batteries that pose an explosion risk. Of course, consumers cannot visually distinguish the presence of a protection circuit board, so it is best to purchase from reputable vendors.
4. Look at the brand
There are many brands of lithium-ion batteries, but their quality is difficult to discern from their appearance. Therefore, it's essential to do your research before making a choice, checking manufacturer materials online. Generally, professional manufacturers are more reliable than small workshops, and established manufacturers are more trustworthy than newcomers to the field.
