Achieving 1300 Wh/L in Anode‐Free Li Batteries With Integrated 3D Printed Cathode and Electrolyte
Year: 2026
Type: article
Abstract: ABSTRACT Anode‐free Li batteries employing ultra‐thick cathodes offer exceptional volumetric energy density, yet are hindered by side reactions and limited Li reservoirs. This study develops an anode‐free pouch cell using a 3D‐printed ultra‐thick cathode (120 mg cm ‒2 ) and a dual‐salt/dual‐solvent electrolyte. The electrolyte forms an anion‐rich solvation structure, fostering an elastic‐plastic solid‐electrolyte interphase layer that enables highly reversible Li plating/stripping on bare Cu current collectors and stable prolonged cycling, even under low temperature conditions. The configuration delivers energy densities of 1,308 Wh L ‒1 and 424 Wh kg ‒1 , alongside a remarkable areal capacity of 19.11 mAh cm ‒2 . This work establishes a scalable and cost‐effective technical route for high‐energy, safe anode‐free batteries, which is expected to expedite their commercialization in electric aviation and the fast‐growing low‐altitude economy.
Source: Advanced Materials
DOI: 10.1002/adma.73891
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Award: G7134876049
OpenAlex ID: W7166529924