کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6617842 459633 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance gains in single flow zinc-nickel batteries through novel cell configuration
ترجمه فارسی عنوان
دستاوردهای عملکرد در باتری تک نیکل با استفاده از پیکربندی جدید سلول
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Rapid charge-discharge rate is an important feature of energy storage devices, but causes dramatic reduction in battery performance. In single flow zinc-nickel batteries (ZNBs), large polarization of nickel hydroxide electrode is an obstacle to realizing high charge-discharge rate without compromising battery performance. A novel cell structure with a serpentine flow field is designed to reduce the polarization of the positive electrode through enhancing mass transport. The power density is improved nearly fourfold by elevating charge-discharge current density from 20 mA cm−2 to 80 mA cm−2 for the first time. Compared to traditional structure cell, the energy efficiency is improved 10.3% reaching to 75.2% at 80 mA cm−2, which has a remarkable improvement. No obvious decrease of efficiencies is presented in the 70 charge-discharge cycles. This provides a feasible method to improve the charge-discharge rate with high performance and boosts the practical application progress of ZNBs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 105, 30 August 2013, Pages 618-621
نویسندگان
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