Lithium battery
1. It has a higher energy-to-weight ratio and energy-to-volume ratio;
2. It has high tension. a single lithium battery is 3.6V, which is equivalent to 3 batteries. Series voltage of rechargeable nickel-cadmium or nickel-metal hydride batteries
3. Low self-discharge and long-term storage, which is the case. most important advantage of this battery;
4. No memory effect. Lithium batteries do not have the so-called memory effect of nickel-cadmium batteries, so lithium batteries do not need to be discharged before being charged;
5. Long lifespan. Under normal working conditions, the number of charge/discharge cycles of lithium batteries is far more than 500 times;
6. It can be charged quickly. Lithium batteries can generally be charged with a current of 0.5 to 1 times the capacity, reducing charging timee to 1 to 2 hours
7. They can be used in parallel as desired
<; p> 8. Due to the fact that it does not contain cadmium, lead, mercury and other heavy metal elements, and does not pollute the environment, it is the most advanced green battery in the world ;Lithium-. ion battery
1) Single high voltage battery The working voltage can reach 3.6-3.9V, which is 3 times that of Ni-Cd and Ni-H batteries
2) The specific energy is important and the real specific energy that can currently be obtained is 100 to 125 Wh/kg and 240 to 300 Wh/L (2 times that of Ni-Cd, 1.5 times that of Ni-MH with development). technology in the future, the specific energy can reach 150 Wh/kg and 400 Wh/L
3) Long lifespan, generally It can reach more than 500 times, even more than 1 000 times.For electrical appliances with low current discharge, the battery life will doublethe competitiveness of the electrical appliance.
4) Good safety performance, no pollution and no memory effect. -ion, lithium batteries tend to form dendrites and short circuits due to metallic lithium, which reduces its areas of application: Li-ion does not contain cadmium, lead, mercury and other elements polluting the environment: certain processes (such as sintering) Ni-Cd batteries have a major disadvantage: the "memory effect", which seriously limits the use of batteries, but Li-ion does not have this problem at all.
5) Self-discharge is low. The self-discharge rate of fully charged Li-ion at room temperature after one month of storage is about 10%, which is much lower than that of Ni-Cd 25-30. % Ni, MH 30-35%.
6) It can be charged and discharged quickly, and the capacity can reach more than 80% of the rated capacity with 1C charging.
7) The beachoperating temperature is high, the operating temperature is -25 to 45°C. With the improvement of electrolyte and positive electrode, it should be extended to -40 to 70°C. C.
Easy to use, easy to carry when going out, can solve unexpected needs and will not have a negative impact on mobile phones. Relatively speaking, lithium batteries are. better for charging. Bao is better.
Mobile power, English mobile powerpack (MPP for short), also called external battery, travel charger, etc., is a portable charger that integrates power and charging functions. It can charge mobile phones and other digital devices anytime and anywhere or provide standby power.
Mobile power supplies generally use lithium batteries or dry cells as energy storage units. Different from the battery configured inside the produit, it is also called an external battery. Usually equipped with a variety of power adapters, they generally have the characteristics of large capacity, versatile, small size, long life, safety and reliability. They can be used anytime and anywhere to power mobile phones, digital cameras, MP3, MP4. , PDAs, handheld computers, portable game consoles, etc. Product with power supply or standby charging function for a variety of digital products. ?
The quality of a mobile power supply mainly depends on the energy conversion rate. The conversion efficiency of high-quality mobile power can reach around 80%, while the average is around 70-75%. , and the bad is even only 30%. If the rate is less than 75%, it means that the loss of the mobile power line is large, the heat of the battery core elThe same is also important and the damage to the cell phone itself is also great. Large-capacity mobile power supplies generally have two output currents, 1A and 2.1A, corresponding to mobile phones, tablets and other devices respectively. This requires our attention.