The Biggest Characteristic Of Lithium Batteries Is High Specific Energy.

non-rechargeable and rechargeable types

non-rechargeable and rechargeable types. Called one-time non-rechargeable battery cell, it can only be a one-time chemical energy into electricity, can not restore power back to chemical energy (or restore the performance of poor). The rechargeable battery is called secondary batteries (also known as batteries). It will transform electrical energy into chemical energy stored in the use of time and then convert chemical energy into electrical energy, which is reversible, such as lithium batteries power the main features of chemical energy. Smart portable electronics products required size of filial piety, light weight, but the battery size and weight compared with other electronic components is often the largest and heaviest. For example, to the then "Big Brother" is very "thick, heavy," while today's cell phone is so light. One improvement is the battery played a significant role: in the past is nickel-cadmium batteries, lithium ion batteries now. The biggest characteristic of lithium batteries with high specific energy. What is the ratio of energy? Refers to the specific energy per unit weight or unit volume of energy. With specific energy Wh / kg or Wh / L to represent. Wh of energy units, W is watts, h is the hour; kg is 1000 grams (weight units), L is liters (volume units). Here give an example to illustrate: 5, nickel-cadmium battery rated at 1 2V, its capacity is 800mAh, while its energy is 0 96Wh (1 2V 0 8Ah). 5, the same size lithium - manganese dioxide battery rated at 3V, its capacity of 1200mAh, then the energy of 3 6Wh. These two are the same size battery, the lithium - manganese dioxide battery is a nickel-cadmium battery specific energy of 375 times!

3, lithium-ion battery (Li-ion, Lithium Ion Battery): Lithium-ion battery is light weight, large capacity, no memory effect, etc., and have been widely used - in many digital devices now used to make lithium-ion battery power, despite its relatively expensive price. Lithium-ion battery energy density is high, its capacity is the weight of nickel-metal hydride batteries with 1.5 to 2 times, and has very low self-discharge rate. In addition, the lithium-ion battery is almost no "memory effect" and the advantages of non-toxic substances is also important because it is a widely used, has a higher weight to energy ratio and energy ratio of the volume; Laptop Battery

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by: combattery

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