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You searched for id:"oai:NSYSU:etd-0807117-154135". One record found.

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NSYSU

1. Chen, Pei-Lin. Charging/Discharging Strategy with Differential Voltage Method for Lithium Iron Phosphate Battery.

Degree: Master, Electrical Engineering, 2017, NSYSU

This research attempts to develop a tactical operational strategy for the lithium iron phosphate battery to improve the energy efficiency and flexibility. To improve the energy efficiency and shorten the charging time, the proposed strategy sacrifices a part of the available capacity by making use of the flat-voltage region for general purpose running. On the other hand, the upper and lower limits of the safe operation can be expanded in accordance with the experimental evidences of over-charging/discharging and state-of-health (SOH) tracking. To realize this operation strategy, the battery charging and discharging characteristics are analyzed to induce the more efficient operation region. Accordingly, the voltage differential approach is figured out with constant-current charging. Then, the cut-off points can be determined without the need of the battery parameters from the manufacturer or an accurate estimation of the state-of-charge (SOC), disregarding to differences on battery operating characteristics. The feasibility of the proposed strategy has been demonstrated with three different brands of lithium iron phosphate batteries, which are named as A, S, and K, respectively. As compared to the conventionally used constant-current constant-voltage (CC-CV) scheme with a charging/discharging rate of 1 C, Batteries A and S with the differential voltage approach, have a less capacity of 12 % and 10 %, but can shorten the charging time by 16 % and 12 % with improved energy efficiencies of 0.76 % and 0.49 %, respectively, while Battery K has a reduced capacity of about 20 %, but a 31 % shorter charging time with an improved energy efficiency of 0.50 %. Exemplar experiments indicate that Battery A can be over charged by 13 % for a predicative longer duration and has a residual capacity of 9 % for emergent running. Advisors/Committee Members: Chin-Sien Moo (committee member), Yau-Ching Hsieh (chair), Tzai-Fu Lin (chair), Hung-Liang Cheng (chair), Yung-Nung Chang (chair).

Subjects/Keywords: lithium iron phosphate battery; differential voltage approach; Constant-current constant-voltage charging method; over-charging/discharging; state-of-charge (SOC); state-of-health (SOH)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Chen, P. (2017). Charging/Discharging Strategy with Differential Voltage Method for Lithium Iron Phosphate Battery. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807117-154135

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Chen, Pei-Lin. “Charging/Discharging Strategy with Differential Voltage Method for Lithium Iron Phosphate Battery.” 2017. Thesis, NSYSU. Accessed September 20, 2017. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807117-154135.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Chen, Pei-Lin. “Charging/Discharging Strategy with Differential Voltage Method for Lithium Iron Phosphate Battery.” 2017. Web. 20 Sep 2017.

Vancouver:

Chen P. Charging/Discharging Strategy with Differential Voltage Method for Lithium Iron Phosphate Battery. [Internet] [Thesis]. NSYSU; 2017. [cited 2017 Sep 20]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807117-154135.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen P. Charging/Discharging Strategy with Differential Voltage Method for Lithium Iron Phosphate Battery. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807117-154135

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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