کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
183292 459543 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Manganese Dioxide/Cabon Nanotubes Composite with Optimized Microstructure via Room Temperature Solution Approach for High Performance Lithium-Ion Battery Anodes
ترجمه فارسی عنوان
ترکیبات نانولوله کربن دی اکسید منگنز / کاپون با میکروساختار بهینه شده از طریق روش دمای اتاق، راه حل راه حل برای آندز باتری لیتیوم یون
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

Manganese dioxide/cabon nanotubes (MnO2/CNTs) composites with tunable density of MnO2 nanosheets on the surface of CNTs were synthesized by a facile room temperature solution method. When applied in lithium-ion batteries (LIBs) as anode materials, the spacial density of MnO2 nanosheets in the MnO2/CNT composite was verified to be crucial for the lithium storage performance. The optimized composite with moderate spatial density of MnO2 nanosheets delivered a reversible capacity of 903 mA h g−1 at the current rate of 0.24 A g−1. Moreover, this composite exhibited a high stable capacity of 540 mA h g−1 even at a high current density of 2.4 A g−1 after 1500 cycles, demonstrating its potential for applications in LIBs with long cycling life and high power density. The enhanced electrochemical performance of the optimized composite was ascribed to sufficient space between the MnO2 nanosheets on the CNTs, which not only allows the effective electrical contact between the CNT backbones and the conductive carbon but also accommodates the large volume changes upon repeated lithiation/delithiation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 187, 1 January 2016, Pages 465–472
نویسندگان
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