Tuesday 27 October 2009

Lithium laptop Battery Knowledge entry

Lithium laptop Battery Knowledge entry

Li-ion battery and notes

"1" when the new battery laptop battery should be a continuous charge 12 hours.

"2" fully charge and discharge. Cycle three times to wake up a new battery.

"3" a long time when using the external power supply. Suggested removing the battery, so as not to affect the battery life.

"4" periodic charge-discharge; like a long time [1 month or more] does not use a computer or found that the battery charge and discharge time shorter, should be made after charging the 312-0292 battery fully discharged, generally at least a month a full charge-discharge time.

"5" is best to switch off the computer while charging, do not unplug the power in the charge half-way.

"6" to avoid the impact of man-made, demolition, falls, heat or short-circuit


Lithium-ion battery-related knowledge:


1, lithium-ion battery

Lithium-ion batteries currently liquid lithium-ion battery (LIB) INSPIRON 2600 and polymer lithium-ion battery (PLB) categories. Among them, liquid lithium-ion battery is the Li + intercalation compound as the positive and negative secondary battery. LiCoO2 cathode using lithium compounds or LiMn2O4, negative use of lithium - carbon intercalation compounds. Lithium-ion batteries as a result of the high voltage, small size, light weight, high energy, no memory effect, no pollution, little self-discharge, long cycle life and is ideal for the 21st century energy.


2, lithium-ion battery development history

Lithium batteries and lithium-ion batteries in the 20th century developed a new high-energy batteries. This battery is a lithium metal anode, cathode with MnO2, SOCL2, (CFx) n and so on. 70 years into practical use. Because of its high energy, battery voltage high operating temperature range, long storage life, etc., has been widely used in military and civilian small appliances, such as mobile phones, portable computers, camcorders, cameras and so on, in part to replace the traditional INSPIRON 2650 batteries.


3, lithium-ion battery development prospects

Lithium-ion batteries for its unique performance advantages in portable appliances such as laptop computers, cameras, mobile communications are universally applied. At present the development of large-capacity lithium-ion batteries in electric vehicle to start a trial, expected to become the 21st century, the power of electric vehicles, one of the main driving force, and a satellite, aerospace and energy storage aspects applied.


4, the battery's basic performance

(1) the battery open circuit voltage

(2) The battery internal resistance

(3) The battery voltage

(4) The charging voltage

Charging voltage is the secondary battery charging, the external power added to the battery voltage at both ends.

The basic method of charging Youheng current charging and constant voltage charging. Generally use the constant current charging, the characteristics of the process of charging the charge current constant. As the charging progresses, the active substance was restored, the electrode reaction area is shrinking, the electrical polarization gradually 1G222 increased.

(5) Battery Capacity

Battery capacity refers to the amount of electricity from the battery to obtain, often C, said the unit, said common Ah or mAh. The electrical properties of the battery capacity is an important indicator. The battery capacity is usually divided into theoretical capacity, practical capacity and rated capacity.

The capacity of the battery capacity of the decision by the electrodes, if the electrode capacity varies depending on the capacity of the battery capacity that smaller electrodes, but by no means the sum of positive and negative capacities.

(6), the storage battery BAT3151L8 performance and life of

One of the main characteristics of chemical power sources is used to release electrical energy can be stored when not in power. The so-called secondary battery for storage performance is to maintain the ability to recharge your batteries.

For the secondary battery, battery performance measure of good or bad, when life is an important parameter. Following a secondary battery charge and discharge, is called a cycle (or have been in this cycle). At a certain charge and discharge system, the battery capacity reaches a certain specified value before the battery can withstand the charge and discharge times known as the secondary battery life cycle. Lithium-ion batteries have excellent storage performance and long cycle life.

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