苏岳锋
,
吴锋
,
包丽颖
,
杨朝晖
新型炭材料
doi:10.3969/j.issn.1007-8827.2007.01.010
采取溶胶凝胶法在活性炭表面合成RuO2·xH2O,经150℃热处理制得炭钌复合材料.将炭钌复合电极作为碱性电化学电容的正极,研究不同钌含量复合电极的电化学性能,实验证实,当复合电极中的钌质量分数达30%时,其比电容可从纯活性炭电极的241 F/g增加到333 F/g,且复合电极具有与活性炭电极同样优异的高功率放电特性;随着复合电极中钌含量的增加,电极的比电容也会相应地增加,而当电极中的钌质量分数大于10%后,水合氧化钌的贡献比电容却逐渐下降,并稳定在440 F/g左右.
关键词:
炭钌复合材料
,
碱性电化学电容器
,
正极
Huatang YUAN
,
Lifang JIAO
,
Jiansheng CAO
,
Xiusheng LIU
,
Ming ZHAO
,
Yongmei WANG
材料科学技术（英文）
Magnesium-based rechargeable batteries might be an interesting future alternative to lithium-based batteries. It is so far well known that Mg2+ ion insertion into ion-transfer hosts proceeds slowly compared with Li+, so it is necessary to realize fast Mg2+ transport in the host in addition to other requirements as practical cathode materials for magnesium batteries. Positive electrode materials based on inorganic transition-metal oxides, sulfides, and borides are the only ones used up to now to insert magnesium ions. In this paper, the available results of research on materials suitable as possible, for secondary magnesium batteries, are reviewed.
关键词:
Rechargeable magnesium battery
,
null
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