Wednesday, November 27, 2013

Li Polymer or Li Ion battery, Which One is Better?

Li Polymer or Li Ion battery, Which One is Better?
Li Polymer or Li Ion battery, Which One is Better?
Lithium is the lightest metal, but when compared with Li-Ion and Li-Pol (Lithium Polymer) which are both made of Lithium then there are some advantages and disadvantages as follows:

Advantages of Li-Pol compared Li-Ion:

1. Li-Pol battery is more flexible and malleable as gel, and the manufacturer is not limited by standard cell shape. Instead Li-ion batteries have a limited form of construction should be shaped box. The possibility of choosing a Smartphone manufacturer Li-Pol because of the flexibility that can be thinner and lighter weight than Li-ion.

2. If stored for a long period, Li-Pol relative have lost the ability to save a little more power than the Li-Ion (but still have lost the ability to save power, so that Li-Pol stored for long periods of time will also experience a decrease in performance).

As an illustration, Li-ion stored 1 year even if not used at all will experience a significant loss in performance. Storage in a cool temperature of 15 degrees Celsius can slow the decline in battery power, but it is advisable to prestored in the battery charge to 40 % capacity.

3. Li-Pol weights lighter than the Li-Ion jelly because it uses electrodes that do not require a barrier metal, because it is used by the majority of Li-Pol for aero modeling enthusiasts.


Disadvantages of Li-Pol compared Li-Ion:

1. The cost of production is more expensive than Li-ion.

2. has a lower energy density, or in other words the cost to energy ratio is higher than Li-ion.

3. Require a special charger that is capable of delivering the same amount of power to the entire cell. This increases the cost of a charger for Li-Pol compared with Li-ion.

One of the unique things that need to be considered by the user and Li-Ion battery is a Li-Pol battery charge capacity at moderate ( 30-60 % ) will have a useful life that is much higher than that in the charge on the battery capacity is low ( < 30 % ), especially when its batteries run out ( 0 % ).

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