Geon-Tae Park, Nam-Yung Park, Ji-Hyun Ryu, Sung-June Sohn, Tae-Yeon Yu, Myoung-Chan Kim, Sourav Baiju, Payam Kaghazchi, Chong S. Yoon, Yang-Kook Sun
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Zero-strain Mn-rich layered cathode for sustainable and high-energy next-generation batteries
The increasing demand for high-energy Li-ion batteries for the electrification of personal transportation may lead to uncertainty in the global supply of raw materials (Co and Ni). Here we propose a novel Mn-rich composition, which has a quasi-ordered structure with previously unobserved two intermixed cation-ordering sequences. The partially ordered structure stabilizes the delithiated cathode at a high cut-off voltage, offering strain-free characteristics, with structural variations along both the a and c axes limited to approximately 1%. Consequently, the cathode can operate at 4.6 V while delivering a reversible capacity comparable to that of Ni-rich Li(Ni0.8Co0.1Mn0.1)O2. Moreover, a high capacity is maintained during long-term and high-voltage cycling in full cells with exceptional thermal safety. The high-performance Mn-rich layered cathodes characterized by quasi-ordered crystal structure can potentially relieve supply uncertainty resulting from the rising demand for Ni in the battery industry and environmental concerns associated with the extraction of Ni from its ores.
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.