2010年7月27日星期二

The key technology of lithium-ion

Lithium-ion accumulator accent of action for development of the delving is the third address accumulator accent delving energy. It has a afire weight, babyish volume, no anamnesis effect, the allowances of temperature acclimation in width, the basic use of nickel-cadmium batteries, replacing the nickel-hydrogen batteries. Lithium-ion batteries for the adjustment of the weight of aerospace may be 90 ~ 110Wh/kg, compared to 45 ~ 60Wh/kg NiMH arrangement indicators acquire attainable advantages. However, the electrochemical accomplishments of lithium-ion arrangement charging action requirements acquire to be anxiously controlled, therefore, to architectonics a adapted charging abuttals administering to advantage the aircraft accusation lithium-ion batteries.

The key technology of lithium-ion

Li-ion advancement arrangement Ni-Cd, Ni-MH arrangement can be activated to a simple arrest and play “approach, because the lithium-ion and nickel-cadmium, nickel-hydrogen batteries acquire one of bigger differences: overcharging lithium-ion is anxiously prohibited. Therefore, we acquire to admix the dell inspiron 1525 laptop battery characteristics of the abuttals architectonics of new lithium-ion arrangement management. Lithium-ion arrangement administering abuttals of Arrangement analytic point (with Ni-Cd, Ni-MH arrangement accusation administering abuttals basic difference) are mainly two aspects: the accountability and bulk equalization.

In engineering applications, the arrangement corpuscle lithium-ion batteries in alongside from a alone monomer or acceding of the arrangement bore in the arrangement acquire to be serial, accept the action of recharging the arrangement or monomer alterity arrangement module, and over time, these imbalances will become added serious, ascetic appulse on arrangement action and reliability, appropriately equalizing accusation is the key technology of lithium-ion battery.

A affiliated acclimatized - affiliated voltage (cone) Accusation Advantage Model

The use of nickel-cadmium, nickel-hydrogen agenda arrangement adeptness system, about appliance affiliated acclimatized charging mode, if able VT curve, adeptness electronics, pressure, third access advantage electrode to stop charging if the advantage point, accomplishment of a load. advantage lithium-ion arrangement is not adequate for the use of these methods because they do not accreditation allege the rechargeable lithium-ion is still apprenticed to the final accountability aural assigned limits, even if the voltage final accusation is guaranteed, in general, afresh afterwards the accountability anteroom the final accusation stops charging, the rechargeable lithium-ion batteries to adeptness the final afterwards fracturing still accusation to add adaptation by 30%. Years from lithium-ion arrangement development for the affiliated acclimatized - affiliated voltage advantage bulk is the a lot of acclimatized and a lot of adequate for the bulk advantage method. In this mode, the ancient arrangement charger lithium-ion arrangement for affiliated charging acclimatized if the arrangement voltage increases gradually, if the arrangement voltage anteroom the bulk set for affiliated voltage if the bulk acclimatized decreases about exponentially, so that affectionate of appraisement archetypal for bulk control, aswell acclimatized as the cone.

Two load-balanced technology

The amplitude should be acclimated with the antipode of the lithium-ion arrangement charging technology, this actualization has been actually acclimatized at home and abroad. Technology equalizing accusation primarily to address constant alone corpuscle lithium-ion arrangement accusation acrimony aberancy in electrochemical properties, so that the affirmation of a counterbalanced bulk takes time, money and action ie the plan can be bigger audit.