18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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AG3 battery.A closer look at the developing new battery technology challenges lithium batteries

release time:2024-03-01 Hits:     Popular:AG11 battery

  

  Lithium batteries: There is still room for improvement

  Facing the challenges of silver-zinc batteries and fuel cells, have lithium batteries really come to an end? The answer is not yes. In the past few years, although accidents have occurred frequently with lithium batteries, many manufacturers are still working hard to improve lithium batteries, hoping that they will have higher safety and greater power.

  At present, what we use most is liquid lithium battery (lithium ion battery, abbreviated as LIB), and there is also a product called polymer lithium battery (polymer lithium ion battery, abbreviated as LIp). The positive and negative electrode materials they use are the same, and the working principles of the batteries are basically the same. The main difference between them is the electrolyte. Liquid lithium batteries use liquid electrolytes, while polymer lithium-ion batteries use solid polymer electrolytes instead. This polymer can be "dry" or "glue" "state".

  Square lithium-ion polymer battery structure

  Since the liquid electrolyte is replaced by a solid electrolyte, compared with liquid lithium batteries, polymer lithium batteries have the advantages of being thinner, any area, and any shape. Therefore, the battery casing can be made of aluminum-plastic composite film, thereby improving The capacity of the entire battery. Polymer lithium batteries can also use polymers as cathode materials, and their quality and energy will be increased by more than 50% compared to current liquid lithium batteries. In addition, polymer lithium batteries are better than lithium batteries in terms of working voltage, charge and discharge cycle life, etc.

  Lithium batteries used in digital cameras

  In terms of safety, which the industry is concerned about, due to the use of solid materials as electrolytes, polymer lithium batteries will not explode or burn due to short circuits or other reasons, nor will they be damaged due to increases in operating temperature. In addition, polymer lithium batteries do not need to be packaged in incredibly thick steel shells, so they can easily achieve a thinner and lighter volume, which is suitable for manufacturing ultra-thin batteries. Polymer lithium batteries have so many advantages that are unmatched by today's liquid lithium batteries.

  Lithium polymer battery

  Although polymer lithium batteries have overwhelming advantages, there is still a clear gap between them and mainstream liquid lithium batteries in terms of maturity and cost control. The current production cost of liquid lithium batteries is low and the technology is mature. The production cost of polymer lithium batteries is much higher than the former, especially in situations where multiple cells need to be connected in parallel, such as in notebooks. Not everyone can accept the high price of polymer lithium batteries. . However, due to the efforts of manufacturers, the price of polymer lithium batteries began to decline sharply in 2008, and it is expected to gradually replace traditional liquid lithium batteries.

  In addition to improved safety, lithium batteries have also seen huge improvements in capacity and charging speed. Manufacturers including Lenovo and Dell have developed lithium batteries with charging times of 30 minutes or even faster. Until silver-zinc batteries and fuel cells finally mature, lithium batteries will continue to develop and become the primary source of power for our mobile devices.

  Conclusion From nickel-cadmium batteries to lithium batteries, we have witnessed the transformation of rechargeable batteries in performance and lifespan. In the digital age where everything is mobile, we even need batteries that can provide continuous power supply and recharge time without waiting. Facing the continuous development of silver-zinc batteries and fuel cells, our digital life will inevitably undergo earth-shaking changes due to the replacement of power sources. Of course, lithium batteries will not sit still, and continuous technological innovation will maintain its strong vitality. Maybe in a few years, we will no longer need to worry about the battery life of laptops, and it will no longer be a fantasy to charge a mobile phone for several months. A new mobile era that bids farewell to "power shortage" is quickly approaching us.


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