![]() ![]() The whole system thus undergoes an electrochemical redox reaction (reduction/oxidation): the anode loses electrons and becomes oxidized while the cathode gains electrons and is reduced. As the anode becomes negatively charged, the electrons travel along a conducting wire to the cathode. The anode and cathode are separated by an electrolyte that interacts with the anode to generate electrons, which creates a charge gradient in the cell. The cathode contains a lithium metal oxide (such as lithium-cobalt oxide (LiCoO2)), which provides lithium ions, whereas the anode contains a lithium carbon (such as graphite). The science behind LiPo batteries is the same as in other Li-ion batteries: chemical energy is converted to electrical energy when electrons travel from the battery’s anode to its cathode, creating an electrical current. Common polymer electrolytes may be dry, porous or a gel, and include poly(methyl methacrylate) (PMMA), poly(acrylonitrile) (PAN), poly(vinylidene fluoride) (PVdF), and poly(ethylene oxide) (PEO). LiPo batteries differ from other lithium-ion (Li-ion) batteries in that they have a solid polymer electrolyte component rather than a liquid electrolyte. LiPo batteries are composed of a lithium-based cathode and anode separated by a polymer electrolyte. The most common batteries used in drones are lithium polymer (LiPo) batteries. Example - Choosing the right battery for maximum flight timeįigure 1: LiPo battery pack used in Otus quadcopter drone What are LiPo Batteries.How to choose a LiPo battery for your drone.Just like your motor and propeller, your battery will eventually fail, but this can be postponed by choosing the correct one and operating it safely. One of the main challenges is decoding the many performance indicators listed on the battery, such as capacity, discharge rating, and cell configuration.Ĭhoosing the right battery for your drone will not only help improve performance, but also increase it’s lifetime. There are hundreds of drone batteries on the market and it can be difficult to decide which one is right for your build. ![]()
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