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Self-discharge is a chemical reaction, just as closed-circuit discharge is, and tends to occur more quickly at higher temperatures. Storing batteries at lower temperatures thus reduces the rate of self-discharge and preserves the initial energy stored in the battery.
By 2007, monthly self-discharge rate was estimated at 2% to 3%, and 2 [6] –3% by 2016. [68] By comparison, the self-discharge rate for NiMH batteries dropped, as of 2017, from up to 30% per month for previously common cells [69] to about 0.08–0.33% per month for low self-discharge NiMH batteries, and is about 10% per month in NiCd batteries.
This is of course impossible, because the battery will still self-discharge internally with or without zero discharge through a load. The self discharge rate depends on the chemistry and ambient temperature. If the capacity is listed for two discharge rates, the Peukert exponent can be determined algebraically:
Discharge efficiency Self-discharge rate Shelf life Anode Electrolyte ... Low self-discharge nickel–metal hydride battery: 500–1,500 [14] Lithium cobalt oxide ...
However, newer low self-discharge nickel–metal hydride (NiMH) batteries and modern lithium designs display a lower self-discharge rate (but still higher than for primary batteries). The active material on the battery plates changes chemical composition on each charge and discharge cycle; active material may be lost due to physical changes of ...
Hexagonal lithium polymer battery for underwater vehicles. LiPo cells provide manufacturers with compelling advantages. They can easily produce batteries of almost any desired shape. For example, the space and weight requirements of mobile devices and notebook computers can be met. They also have a low self-discharge rate of about 5% per month ...