Microbatteries with twin-Swiss-rolls redefine performance limits in the sub-square millimeter range

Yang Li; Minshen Zhu; Dmitriy D Karnaushenko; Fei Li; Jiang Qu; Jinhui Wang; Panpan Zhang; Lixiang Liu; Rachappa Ravishankar; Vineeth Kumar Bandari; Hongmei Tang; Zhe Qu; Feng Zhu; Qunhong Weng; Oliver G Schmidt

doi:10.1039/d2nh00472k

Microbatteries with twin-Swiss-rolls redefine performance limits in the sub-square millimeter range

Nanoscale Horiz. 2022 Dec 20;8(1):127-132. doi: 10.1039/d2nh00472k.

Authors

Yang Li^{1

2

3}, Minshen Zhu^{1

3}, Dmitriy D Karnaushenko¹, Fei Li^{1

2

3}, Jiang Qu^{1

2

3}, Jinhui Wang^{1

2

3}, Panpan Zhang⁴, Lixiang Liu³, Rachappa Ravishankar³, Vineeth Kumar Bandari^{1

2

3}, Hongmei Tang^{1

2

3}, Zhe Qu^{1

2

3}, Feng Zhu^{1

2

3

5}, Qunhong Weng^{3

6}, Oliver G Schmidt^{1

2

3

7}

Affiliations

¹ Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, Chemnitz, 09126, Germany.
² Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, 09107, Germany.
³ Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, 01069, Germany.
⁴ State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
⁵ State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
⁶ School of Materials Science and Engineering, Hunan University, Changsha, 110016, China.
⁷ School of Science, Dresden University of Technology, Dresden, 01069, Germany.

PMID: 36444694
DOI: 10.1039/d2nh00472k

Abstract

To maintain the downscaling of microelectronic devices with footprints less than one square millimeter, next-generation microbatteries should occupy the same area and deliver adequate energy for running a new generation of multi-functional microautonomous systems. However, the current microbattery technology fails in accomplishing this task because the micrometer-sized electrodes are not compatible with on-chip integration protocols and technologies. To tackle this critical challenge, an on-chip Swiss-roll microelectrode architecture is employed that exploits the self-assembly of thin films into ultra-compact device architectures. A twin-Swiss-roll microelectrode on a chip occupies a footprint of 0.045 mm² and delivers an energy density up to 458 μW h cm^-2. After packaging, the footprint of a full cell increases to 0.11 mm² with a high energy density of 181 μW h cm^-2. The volumetric energy density excluding the chip thickness is 16.3 mW h cm^-3. These results open opportunities for deploying microbatteries as energy and power sources to drive smart dust microelectronics and microautonomous systems.