u003cpu003eu003cpu003e At present, people have developed all kinds of lithium-ion batteries. There are many types of lithium-ion batteries, and there are many types of lithium-ion batteries. We can classify them according to the positive electrode of the battery. Of course, since electrolytes are also very important among lithium-ion batteries, and there are many types, people will also classify them according to different electrolytes: the first type is liquid lithium-ion batteries, because of the constituent materials of this battery, their electrolyte It is liquid; the second type is polymer lithium ion battery, because in this battery constituent material, their electrolyte is polymer and solid. u003c/pu003e According to the advantages of lithium-ion batteries listed in the previous article (/news/15373071.html), it does have many obvious advantages, but in the process of its research and application, some problems have also been discovered. Mainly as follows: u003cpu003eu003c/pu003eu003c/pu003eu003cpu003e 1. The problem of aging: Li-ion batteries also have capacity decay problems, but this decay is basically independent of the number of cycles, mainly related to storage temperature. The storage temperature of the lithium ion battery will attenuate more power. u003c/pu003eu003cpu003eu003c/pu003eu003cpu003e 2. Thermal safety issues: With the increasing application of large-capacity lithium-ion batteries, under abuse conditions (such as high temperature, short circuit, overcharge and discharge, vibration , Squeeze and impact, etc.), lithium-ion batteries are prone to smoke, fire or even explosion. The thermal safety of lithium-ion batteries has attracted people's attention, and the research on the thermal safety of lithium-ion batteries has also increased and deepened. u003c/pu003eu003cpu003e Of course, compared with its outstanding performance advantages, these problems will not affect the wide application of lithium-ion batteries, and people will increase the research on lithium battery pack
problems and the improvement of material performanceu003c/p u003eu003c/pu003e
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