Journal
ACS APPLIED ENERGY MATERIALS
Volume 3, Issue 9, Pages 8402-8409Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.0c01029
Keywords
ionogel; 3D battery; solid-state electrolyte; Li-ion energy storage; microelectronic
Funding
- Nanostructures for Electrical Energy Storage (NEES), an Energy Frontier Research Center (EFRC) - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DESC0001160]
- Sandia Laboratory Directed Research and Development program
- U.S. Department of Energy's National Nuclear Security Administration [DE-NA-0003525]
Ask authors/readers for more resources
It is well established that the miniaturization of batteries has not kept pace with the miniaturization of electronics. Three-dimensional (3D) batteries, which were developed with the intent of improving microbattery performance, have had limited success because of fabrication challenges and material constraints. Solid-state, 3D batteries have been particularly susceptible to these shortcomings. In this paper, we demonstrate that the incorporation of a high-conductivity, solid electrolyte is the key to achieving a nonplanar solid-state battery with high areal capacity and high power density. The model 2.5D platform used in this study is a modification of the more typical 3D configuration in that it is comprised of a cathode array of pillars (3D) and a planar (two-dimensional, 2D) anode. This 2.5D geometry exploits the use of a high-conductivity, ionogel electrolyte (10(-3) S cm(-1)), which interpenetrates the 3D electrode array. The 2.5D battery offers high areal energy densities from the post array, while the high-conductivity, solid electrolyte enables high power densities (3.7 mWh cm(-2) at 2.8 mW cm(-2)). The reported solid-state 2.5D device exceeds the energy and power densities of any 3D solid-state system and the derived multiphysics model provides guidance for achieving significantly higher energy and power densities.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available