| 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 | |
| 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. |
| https://doi.org/10.1016/j.ensm.2022.10.023 |
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