Chang-Xin Zhao, Zheng Li, Bin Chen, Fu Chen, Chunsheng Wang
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引用次数: 0
Abstract
Fast charging of high-energy batteries is critical for transportation electrification but remains challenging because the rapid rise in cell overpotential easily exceeds electrolytes’ fixed electrochemical stability window. Here we design a self-adaptive electrolyte with a dynamically expanding electrochemical stability window that increases in real time during charging, outpacing the rise in overpotential as the charging current intensifies. The self-adaptive electrolyte is a single-phase solution of salt and complementary oxidation- and reduction-resistant solvents at the cloud point composition but can undergo solvent separation to dynamically redistribute solvent components during charging. The oxidation-resistant solvents concentrate at the positive electrode and reduction-resistant solvents accumulate at the negative electrode, broadening the electrolyte stability window in real time during charging. Proof-of-concept experiments validate the versatility of this design in both aqueous zinc-metal and non-aqueous lithium-metal batteries, achieving high Coulombic efficiencies of negative electrodes and enhanced oxidative stability for positive electrodes.
Nature EnergyEnergy-Energy Engineering and Power Technology
CiteScore
75.10
自引率
1.10%
发文量
193
期刊介绍:
Nature Energy is a monthly, online-only journal committed to showcasing the most impactful research on energy, covering everything from its generation and distribution to the societal implications of energy technologies and policies.
With a focus on exploring all facets of the ongoing energy discourse, Nature Energy delves into topics such as energy generation, storage, distribution, management, and the societal impacts of energy technologies and policies. Emphasizing studies that push the boundaries of knowledge and contribute to the development of next-generation solutions, the journal serves as a platform for the exchange of ideas among stakeholders at the forefront of the energy sector.
Maintaining the hallmark standards of the Nature brand, Nature Energy boasts a dedicated team of professional editors, a rigorous peer-review process, meticulous copy-editing and production, rapid publication times, and editorial independence.
In addition to original research articles, Nature Energy also publishes a range of content types, including Comments, Perspectives, Reviews, News & Views, Features, and Correspondence, covering a diverse array of disciplines relevant to the field of energy.