The Isolation DC-DC Partial Voltage Charge Equalization on Lithium-Ion Power Battery

Zhang Yu; Dian Long Wang; Ji Dong Li

doi:10.4028/www.scientific.net/AMR.860-863.599

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 860-863The Isolation DC-DC Partial Voltage Charge...

The Isolation DC-DC Partial Voltage Charge Equalization on Lithium-Ion Power Battery

Abstract:

The inconsistency of power battery pack is one of the key factors decreasing the battery performance. The common equalization techniques have some problems like control is complex; the equalization effect is not obvious and low efficiency. In this paper, an equalization charge apparatus was designed based on DC-DC partial voltage technique with the multiple secondary invert circuit and DSP technique and analyzed the main characteristics of this method. Its input is the energy of the whole battery pack. At last, an equilibrium charging experiment was done adopting a lithium-ion power battery pack constituted by 84 series 80Ah cells. The results show that the method can effectively improve the consistency of the battery, give full play to the performance of power battery and good equilibrium effect.

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Periodical:

Advanced Materials Research (Volumes 860-863)

Pages:

599-602

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.860-863.599

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Online since:

December 2013

Authors:

Zhang Yu, Dian Long Wang*, Ji Dong Li

Keywords:

Dc-Dc Converter, Equalizing Charge, Lithium-Ion Power Batteries, Uniformity

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* - Corresponding Author

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