TY - JOUR
T1 - New Solar Cell-Battery Hybrid Energy System
T2 - Integrating Organic Photovoltaics with Li-Ion and Na-Ion Technologies
AU - Hoefler, Sebastian F.
AU - Zettl, Roman
AU - Knez, Daniel
AU - Haberfehlner, Georg
AU - Hofer, Ferdinand
AU - Rath, Thomas
AU - Trimmel, Gregor
AU - Wilkening, H. Martin R.
AU - Hanzu, Ilie
PY - 2020/12/28
Y1 - 2020/12/28
N2 - A solar energy conversion system, an organic tandem solar cell, and an electrochemical energy storage system, an alkali metal-ion battery, were designed and implemented in an integrated hybrid photorechargeable battery for simultaneous energy conversion and storage. As a proof of concept, the integrated power pack was successfully realized in a three-terminal hybrid assembly featuring two negative and a joint positive electrode. The device can be directly charged upon illumination (photocharging) and discharged on the external load for many cycles. Aspects and requirements related to materials design, their specific properties, and the encapsulation issues are presented and discussed. Data on the compatibility of materials for solar cells with those used in batteries is presented for the first time. We also report on the efficiency of the solar cell part, the battery part, as well as the overall energy efficiency of the new system. From the behavior of this first of a kind device, we were able to derive its relevant characteristics that will guide future work in this highly application-oriented research field.
AB - A solar energy conversion system, an organic tandem solar cell, and an electrochemical energy storage system, an alkali metal-ion battery, were designed and implemented in an integrated hybrid photorechargeable battery for simultaneous energy conversion and storage. As a proof of concept, the integrated power pack was successfully realized in a three-terminal hybrid assembly featuring two negative and a joint positive electrode. The device can be directly charged upon illumination (photocharging) and discharged on the external load for many cycles. Aspects and requirements related to materials design, their specific properties, and the encapsulation issues are presented and discussed. Data on the compatibility of materials for solar cells with those used in batteries is presented for the first time. We also report on the efficiency of the solar cell part, the battery part, as well as the overall energy efficiency of the new system. From the behavior of this first of a kind device, we were able to derive its relevant characteristics that will guide future work in this highly application-oriented research field.
KW - Energy efficiency
KW - Integrated energy device
KW - IoT power source
KW - Li-ion and Na-ion batteries
KW - Nonfullerene tandem solar cells
KW - Organic photovoltaics
KW - Photocharging
KW - Solar battery
UR - http://www.scopus.com/inward/record.url?scp=85099072082&partnerID=8YFLogxK
U2 - 10.1021/acssuschemeng.0c07984
DO - 10.1021/acssuschemeng.0c07984
M3 - Article
AN - SCOPUS:85099072082
SN - 2168-0485
VL - 8
SP - 19155
EP - 19168
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
IS - 51
ER -