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Three-Dimensional Honeycomb-Structural LiAlO2-Modified LiMnPO4 Composite with Superior High Rate Capability as Li-Ion Battery Cathodes
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-03-12 00:00:00 , DOI: 10.1021/acsami.7b17597 Junzhe Li 1, 2 , Shaohua Luo 1, 3 , Xueyong Ding , Qing Wang 1, 3 , Ping He 2
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-03-12 00:00:00 , DOI: 10.1021/acsami.7b17597 Junzhe Li 1, 2 , Shaohua Luo 1, 3 , Xueyong Ding , Qing Wang 1, 3 , Ping He 2
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In the efforts toward the rapidly increasing demands for high-power application, cathode materials with three-dimensional (3D) architectures have been proposed. Here, we report the construction of the 3D LiAlO2–LiMnPO4/C cathode materials for lithium-ion batteries in an innovation way. The as-prepared 3D active materials LiMnPO4/C and the honeycomb-like Li-ion conductor LiAlO2 framework are used as working electrode directly without additional usage of polymeric binder. The electrochemical performance has been improved significantly due to the special designed core–shell architectures of LiMnPO4/[email protected]2. The 3D binder-free electrode exhibits high rate capability as well as superior cycling stability with a capability of ∼105 mAh g–1 and 98.4% capacity retention after 100 cycles at a high discharge rate of 10 C. Such synthesis method adopted in our work can be further extended to other promising candidates and would also inspire new avenues of development of 3D materials for lithium-ion batteries.
中文翻译：
具有优异高倍率性能的三维蜂窝状结构LiAlO 2改性的LiMnPO 4复合材料，作为锂离子电池正极
为了快速满足对大功率应用的需求，已经提出了具有三维（3D）结构的阴极材料。在这里，我们以创新的方式报告了用于锂离子电池的3D LiAlO 2 -LiMnPO 4 / C正极材料的构造。所制备的3D活性材料LiMnPO 4 / C和蜂窝状锂离子导体LiAlO 2骨架直接用作工作电极，而无需额外使用聚合物粘合剂。通过特殊设计的LiMnPO 4 / [电子邮件保护] 2核-壳结构，电化学性能得到了显着改善。。3D无粘合剂电极具有高倍率能力以及出色的循环稳定性，在10 C的高放电速率下经过100次循环后，容量约为105 mAh g –1，容量保持率达98.4％。这种合成方法在我们的工作中采用可以进一步扩展到其他有前途的候选人，也将为锂离子电池3D材料的开发开辟新途径。
更新日期：2018-03-12
中文翻译：
具有优异高倍率性能的三维蜂窝状结构LiAlO 2改性的LiMnPO 4复合材料，作为锂离子电池正极
为了快速满足对大功率应用的需求，已经提出了具有三维（3D）结构的阴极材料。在这里，我们以创新的方式报告了用于锂离子电池的3D LiAlO 2 -LiMnPO 4 / C正极材料的构造。所制备的3D活性材料LiMnPO 4 / C和蜂窝状锂离子导体LiAlO 2骨架直接用作工作电极，而无需额外使用聚合物粘合剂。通过特殊设计的LiMnPO 4 / [电子邮件保护] 2核-壳结构，电化学性能得到了显着改善。。3D无粘合剂电极具有高倍率能力以及出色的循环稳定性，在10 C的高放电速率下经过100次循环后，容量约为105 mAh g –1，容量保持率达98.4％。这种合成方法在我们的工作中采用可以进一步扩展到其他有前途的候选人，也将为锂离子电池3D材料的开发开辟新途径。
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