Since the beginning of polymer lithium batteries, there have been many advantages of ultra-small, ultra-thin, ultra-light, high plasticity in shape and high insurance.
Based on these advantages, the polymer-free lithium battery is in line with people's pursuit of appearance. Using his power bank, it may be less than 10mm thick, and it may also be made into some special looks. Compared with the fixed appearance of 18650, it is easier to personalize.
Moreover, the insurance of aggregated non-lithium batteries is very high. Even if there is a problem, the overall situation will only swell, which is very attractive to manufacturers and consumers.
The skills of 18650 are more mature, and there are still many large manufacturers still developing and producing. The insurance is actually better than ordinary polymer lithium batteries. Of course, the premise is that you have to use the products of regular large manufacturers.
The disadvantages of 18650 are also obvious. The appearance is easily suppressed. Low-end products have hidden insurance risks. Even if you don't have to, you can't protect others.
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