TY  - JOUR
AU  - Kin, Li-chung
AU  - Liu, Zhifa
AU  - Astakhov, Oleksandr
AU  - Agbo, Solomon N.
AU  - Tempel, Hermann
AU  - Yu, Shicheng
AU  - Kungl, Hans
AU  - Eichel, Rüdiger-A.
AU  - Rau, Uwe
AU  - Kirchartz, Thomas
AU  - Merdzhanova, Tsvetelina
TI  - Efficient Area Matched Converter Aided Solar Charging of Lithium Ion Batteries Using High Voltage Perovskite Solar Cells
JO  - ACS applied energy materials
VL  - 3
IS  - 1
SN  - 2574-0962
CY  - Washington, DC
PB  - ACS Publications
M1  - FZJ-2020-00823
SP  - 431 - 439
PY  - 2020
AB  - Efficient solar charging of a battery has been demonstrated in the past by sizing batteries many times that of a solar cell to reduce the effective current density experienced by the battery. Although efficient, such a strategy of coupling a battery up to 10 times larger with a solar cell will make solar–battery integration more challenging and limit the size, and thus maximum power output, of an integrated device. Area matched LFP-LTO (lithium iron phosphate, lithium titanate) battery solar charging using high voltage lead halide perovskite solar cells with a boost converter gave a maximum overall efficiency of 9.9% and a high 14.9% solar to battery charging efficiency. Two differently sized systems were compared using the same converter, and an exergy analysis was performed, showing limitations of converter usage in solar-powered internet of things (IoT) devices and size dependent battery losses.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000510104700050
DO  - DOI:10.1021/acsaem.9b01672
UR  - https://juser.fz-juelich.de/record/873555
ER  -