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Effects of Carbon Nanotubes on the High-rate Discharge Properties of Nickel/metal Hydride Batteries by J. Lv; J.P. Tu; W.K. Zhang; J.B. Wu; H.M. Wu; B. Zhang is a Engineering article available to read on EtoBox.

What is Effects of Carbon Nanotubes on the High-rate Discharge Properties of Nickel/metal Hydride Batteries about?

The sealed Ni/MH batteries with carbon nanotubes (CNTs) in the positive electrodes were assembled. The overall characteristics of Ni/MH batteries were investigated at different charge-discharge cycles at room temperature. The high-rate discharge performance of the Ni/MH battery was improved by the addition of CNTs in the positive electrode. Under high-rate discharge conditions, the batteries with CNTs added in the positive electrodes exhibited much better cycling stability, higher discharge voltage, and high-rate capability. The increase in internal resistance of the batteries with CNTs was lower than that of the batteries without CNTs during charge-discharge cycles. The addition of 0.5 wt.% CNTs was proved a desired amount to modify the batteries performance at the high discharge rates. Too much CNTs contributed no effect in the improvement of overall performance of the batteries.

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Author

J. Lv; J.P. Tu; W.K. Zhang; J.B. Wu; H.M. Wu; B. Zhang

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-7753)

Published

2004

Language

EN

Field

Engineering (Physical Sciences)