Polymer cells and nickel-metal hydride batteries.
The design of nickel-metal hydride batteries is derived from nickel-cadmium batteries, but there are big changes in improving the memory effect of nickel-cadmium batteries. The main change is to replace the original cadmium used in the negative electrode with a hydrogen storage alloy. Therefore, nickel-metal hydride batteries can be regarded as a typical representative of material innovation. Nickel-metal hydride batteries are much less polluting than nickel-cadmium batteries containing cadmium. Therefore, nickel-cadmium batteries have been gradually replaced by nickel-metal hydride batteries.
The lithium polymer battery drives the gearbox with sufficient power and stability, has a long battery life and takes up less space than the two batteries ci above. However, you should be careful when using lithium polymer batteries (remember): the battery cannot be over-discharged (over-discharge here means that the battery should not be damaged until it can no longer support the gearbox). -Discharging the lithium polymer battery will cause expansion. Otherwise, it will not be able to be charged. If this happens, the battery will be useless and can no longer be used.
Ordinary 18650 batteries are LiPo or Li-Ion, or other types
The power batteries used on model aircraft are mainly based lithium cobalt oxide, and most aircraft models Most of the batteries used are lithium polymer batteries, and they all use small capacity high discharge batteries, generally above 20°C, such as shown in the figure below.
Answers cThe above are for reference only, hope they are helpful to everyone.
Do you know what these two mean? I typed it wrong. The i cannot be capitalized. Generally speaking, ordinary 18650 batteries are lithium-ion rechargeable batteries (note that they are lithium-ion). , not lithium, lithium batteries It is very dangerous Nowadays, all lithium ion batteries on the market are lithium ion batteries, but some people just remove the ions to avoid problems) which are Li -ion