| Title |
High energy density flexible and ecofriendly lithium-ion smart battery |
| ID_Doc |
7368 |
| Authors |
Kuznetsov, OA; Mohanty, S; Pigos, E; Chen, GG; Cai, W; Harutyunyan, AR |
| Title |
High energy density flexible and ecofriendly lithium-ion smart battery |
| Year |
2023 |
| Published |
|
| DOI |
10.1016/j.ensm.2022.10.023 |
| Abstract |
The rapidly growing battery market demands both high energy density and waste-management solutions for the anticipated global annual battery waste of about two million metric tons. To address the energy-environment dilemma, we developed self-standing composite electrodes for Li-ion batteries without electrochemically inactive metal current collectors, additives, and binders, increasing energy density by up to 40%. The electrodes were prepared via in situ mixing of as-grown single-wall carbon nanotubes (SWNTs) with aerosolized electrode active materials, leading to adequate electrical conductivity and mechanical robustness. The SWNT scaffold exhibits a piezoresistive effect, with resistance depending on the voltage-weighted number of inter-nanotube contacts. We exploit this intrinsic piezoresistance of SWNT network for operando self-monitoring of battery structural health. The proposed solution-free battery fabrication technology and architecture eliminates environmentally harmful components and enables recycling by simple mechanical separation, aiming at safety and circular economy. |
| Author Keywords |
High energy density battery; Flexible free-standing electrodes; Pristine carbon nanotube network; Operando self-evaluation of battery health; Coarse-grained molecular dynamics |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000878745500004 |
| WoS Category |
Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary |
| Research Area |
Chemistry; Science & Technology - Other Topics; Materials Science |
| PDF |
https://doi.org/10.1016/j.ensm.2022.10.023
|