期刊
IONICS
卷 22, 期 6, 页码 779-788出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-015-1609-6
关键词
Nanoparticles; Three-dimensional cross-linked structure; MnO@C composite; Lithium-ion battery
资金
- National Natural Science Foundation of China [51274240, 51204209]
MnO@C composites with three-dimensional cross-linked structure were designed and fabricated through hydrothermal treatment. Cation exchange resin was used as the precursor to create a three-dimensional cross-linked porous carbon structure, which was evenly decorated by nanosized MnO particles. When compared with pristine MnO, those MnO@C composites showed much better stability during charge-discharge cycling, retaining a specific capacity of 615 mAh g(-1) (62.5 wt% MnO) after 100 cycles at a current density of 0.2 A g(-1). This could be ascribed to the special three-dimensional cross-linked porous carbon that not only accelerated the transport of Li+ ions but also buffered the volume change and prevented agglomeration of MnO particles during the repeated lithiation and delithiation process.
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