PMID- 34866388 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211216 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 13 IP - 49 DP - 2021 Dec 15 TI - High Mass Loading Asymmetric Micro-supercapacitors with Ultrahigh Areal Energy and Power Density. PG - 58486-58497 LID - 10.1021/acsami.1c16248 [doi] AB - High mass loading asymmetric micro-supercapacitors (MSCs) are key components for the development of high-performance energy and power supply systems. Here, a concept for achieving high mass loading electrodes is presented and applied to high mass loading micro-supercapacitors with ultrahigh areal energy and power density. The positive electrode is made from porous carbon with birnessite coverage and multiwalled carbon nanotubes (CNTs) as conducting additives (PIC-CNTs-MnO(2)). The negative electrode is prepared from hierarchically porous active carbon mixed with CNTs (PICK-CNTs). Both positive and negative electrode materials are tailored to ensure a high content of macro- and mesopores. MSCs with an optimized mass loading of 13.9 mg.cm(-2) (maximum: 23.6 mg.cm(-2)) provide an ultrahigh areal capacitance of 1.13 F.cm(-2) (volumetric capacitance: 22.6 F.cm(-3)), an outstanding energy of 627.8 muWh.cm(-2), and a maximum power density of 64 mW.cm(-2). About 85% of the initial capacitance remained after 5000 cycles. Moreover, shunt and tandem device testing confirmed a high uniformity of these MSCs, meeting the requirements of adjustable output currents and voltages in microchips. FAU - Zhu, Shijin AU - Zhu S AUID- ORCID: 0000-0001-5792-5651 AD - Polymer Chemistry, Chemnitz University of Technology, Chemnitz 09107, Germany. AD - Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz 09126, Germany. FAU - Li, Tianming AU - Li T AD - Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz 09126, Germany. AD - Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz 09107, Germany. AD - Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden 01069, Germany. FAU - Bandari, Vineeth K AU - Bandari VK AD - Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz 09126, Germany. AD - Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz 09107, Germany. AD - Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden 01069, Germany. FAU - Schmidt, Oliver G AU - Schmidt OG AD - Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz 09126, Germany. AD - Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz 09107, Germany. AD - Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden 01069, Germany. FAU - Gruschwitz, Markus AU - Gruschwitz M AD - Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany. FAU - Tegenkamp, Christoph AU - Tegenkamp C AUID- ORCID: 0000-0003-0453-0765 AD - Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany. FAU - Sommer, Michael AU - Sommer M AUID- ORCID: 0000-0002-2377-5998 AD - Polymer Chemistry, Chemnitz University of Technology, Chemnitz 09107, Germany. AD - Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz 09126, Germany. FAU - Choudhury, Soumyadip AU - Choudhury S AUID- ORCID: 0000-0002-3794-8263 AD - Polymer Chemistry, Chemnitz University of Technology, Chemnitz 09107, Germany. AD - Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz 09126, Germany. AD - Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India. LA - eng PT - Journal Article DEP - 20211206 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 SB - IM OTO - NOTNLM OT - areal energy density OT - birnessite OT - high mass loading OT - micro-supercapacitors OT - porous carbons EDAT- 2021/12/07 06:00 MHDA- 2021/12/07 06:01 CRDT- 2021/12/06 08:43 PHST- 2021/12/07 06:00 [pubmed] PHST- 2021/12/07 06:01 [medline] PHST- 2021/12/06 08:43 [entrez] AID - 10.1021/acsami.1c16248 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2021 Dec 15;13(49):58486-58497. doi: 10.1021/acsami.1c16248. Epub 2021 Dec 6.