Analysis of the pros and cons of polymer lithium battery

Source: 2020 - 04 - 02: hold click traffic advantages of polymer lithium battery: 1. The working voltage of a single cell can be up to 3. 6 v ~ 3。 8 v, far higher than 1 of nickel metal hydride batteries and nickel-cadmium batteries. 2 v voltage. 2. High capacity density, higher than the nickel hydrogen battery or nickel cadmium battery 1. 5 ~ 2. 5 times or more. 3. Uniformity and low loss for a long time. 4. Long service life, the normal use of the cycle of life can reach more than 500 times. 5. No memory effect, do not need to run out before charging battery, easy to use. 6. Good safety performance of polymer lithium-ion battery with aluminum composite flexible packaging in the structure, different from the metal shell liquid battery, once the unsafe, it is easier for liquid battery explosion, and polymer battery will only courage. 7. Thinner thickness is small, can do such a thin batteries can be assembled into a credit card. Ordinary liquid lithium battery using custom shell first, then will be positive and negative electrode materials blocking method. 3. 6 mm thickness, technical bottlenecks and polymer battery does not exist the problem. Can achieve below 1 mm thickness, can meet the demand of the current mobile direction. 8. Light weight polymer electrolyte battery don't need metal shell as the protective layer. Polymer battery is 40% lighter than steel of the same capacity lithium battery, battery 20% lighter than aluminium. 9. Large capacity polymer battery is higher than the same size and specifications of the steel battery 10 ~ 15%, 5 ~ 10% higher than the aluminum battery. It has become a color of choice for mobile phones and MMS. At present, most of the new color screen and MMS mobile phone on the market also use polymer battery. Internal resistance is small polymer battery internal resistance is smaller than general liquid battery internal resistance. At present domestic polymer battery internal resistance and even can be less than 35 m, greatly reduces the battery self consumption, prolong the phone standby time, reached the international standard level. The polymer lithium battery, support the large discharge current, is the ideal choice of the remote control model, is the most promising for nickel metal hydride batteries. 11. Can customize the shape of the shape of the manufacturers do not restrict their standards, and can make them the size of the economy is applicable. Polymer battery can according to customer demand increase or decrease the thickness of the battery, the battery model to develop new, cheap, mold cycle is short, some can even customize according to the shape of mobile phones, make full use of the battery shell space, increase the battery capacity. 12. Good discharge characteristic polymer battery using gel electrolytes, has the stable discharge characteristic, the discharge in liquid electrolyte is higher than platform. 13. Guard design simple polymer lithium battery weakness: 1. High cost of battery, the electrolyte system is difficult to purify. 2. Need to control the protection circuit, overcharge or overdischarge can destroy the reversibility of chemicals, which seriously affect the service life of the battery.