Surface modification of the MH electrode of the MH/Ni batteries with copper

Kai Yang; Feng Wu; Shi Chen; Cun Zhong Zhang

Surface modification of the MH electrode of the MH/Ni batteries with copper

Kai Yang^*, Feng Wu, Shi Chen, Cun Zhong Zhang

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

In order to increase the conductivity of the metal-hydride electrode of the MH/Ni batteries, the electrode was modified with a thin copper film using vacuum evaporate plating technology. The XRD, XPS and SEM were used to analyze the modified and unmodified electrodes. Results showed that the electrode could be modified with copper-without influence on the crystal structure of the alloy. The electrochemical performance test showed that the discharge capacity at 5 C was increased by 190 mA·h and the discharge voltage was increased by 0.12 V after the surface modification of the electrode, the resistance of the batteries was also decreased by 32.8%. Meanwhile, the inner pressure of the batteries during charging was lowered and the charging efficiency of the batteries was improved.

Original language	English
Pages (from-to)	1109-1112
Number of pages	4
Journal	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume	25
Issue number	12
Publication status	Published - Dec 2005

Keywords

MH/Ni batteries
Metal-hydride electrode
Surface modification
Vacuum evaporate plating technology

Cite this

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title = "Surface modification of the MH electrode of the MH/Ni batteries with copper",

abstract = "In order to increase the conductivity of the metal-hydride electrode of the MH/Ni batteries, the electrode was modified with a thin copper film using vacuum evaporate plating technology. The XRD, XPS and SEM were used to analyze the modified and unmodified electrodes. Results showed that the electrode could be modified with copper-without influence on the crystal structure of the alloy. The electrochemical performance test showed that the discharge capacity at 5 C was increased by 190 mA·h and the discharge voltage was increased by 0.12 V after the surface modification of the electrode, the resistance of the batteries was also decreased by 32.8%. Meanwhile, the inner pressure of the batteries during charging was lowered and the charging efficiency of the batteries was improved.",

keywords = "MH/Ni batteries, Metal-hydride electrode, Surface modification, Vacuum evaporate plating technology",

author = "Kai Yang and Feng Wu and Shi Chen and Zhang, {Cun Zhong}",

year = "2005",

month = dec,

language = "English",

volume = "25",

pages = "1109--1112",

journal = "Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology",

issn = "1001-0645",

publisher = "Beijing Institute of Technology",

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TY - JOUR

T1 - Surface modification of the MH electrode of the MH/Ni batteries with copper

AU - Yang, Kai

AU - Wu, Feng

AU - Chen, Shi

AU - Zhang, Cun Zhong

PY - 2005/12

Y1 - 2005/12

N2 - In order to increase the conductivity of the metal-hydride electrode of the MH/Ni batteries, the electrode was modified with a thin copper film using vacuum evaporate plating technology. The XRD, XPS and SEM were used to analyze the modified and unmodified electrodes. Results showed that the electrode could be modified with copper-without influence on the crystal structure of the alloy. The electrochemical performance test showed that the discharge capacity at 5 C was increased by 190 mA·h and the discharge voltage was increased by 0.12 V after the surface modification of the electrode, the resistance of the batteries was also decreased by 32.8%. Meanwhile, the inner pressure of the batteries during charging was lowered and the charging efficiency of the batteries was improved.

AB - In order to increase the conductivity of the metal-hydride electrode of the MH/Ni batteries, the electrode was modified with a thin copper film using vacuum evaporate plating technology. The XRD, XPS and SEM were used to analyze the modified and unmodified electrodes. Results showed that the electrode could be modified with copper-without influence on the crystal structure of the alloy. The electrochemical performance test showed that the discharge capacity at 5 C was increased by 190 mA·h and the discharge voltage was increased by 0.12 V after the surface modification of the electrode, the resistance of the batteries was also decreased by 32.8%. Meanwhile, the inner pressure of the batteries during charging was lowered and the charging efficiency of the batteries was improved.

KW - MH/Ni batteries

KW - Metal-hydride electrode

KW - Surface modification

KW - Vacuum evaporate plating technology

UR - http://www.scopus.com/inward/record.url?scp=33644867273&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:33644867273

SN - 1001-0645

VL - 25

SP - 1109

EP - 1112

JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

IS - 12

ER -

Surface modification of the MH electrode of the MH/Ni batteries with copper

Abstract

Keywords

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