Search scope:
排序: Display mode:
The prospect of saving copper conductor by using aluminum in China
Huang Chongqi
Strategic Study of CAE 2012, Volume 14, Issue 10, Pages 4-9
Saving copper by using aluminum is the international trend now, but the development is progress step by step and every country has a different processes. There is an obvious difference among China and other countries on the application of aluminum and aluminum alloy in electric cables. There is a wide development space for the aluminum alloy conductors using for overhead line. There is a little development for application of copper clad aluminum conductors and the related standards are being approved as well as written; we expect progressive test in use. Now we also expect to find good technic economic efficient means to separate the copper and aluminum during recycling processing. The market of aluminum clad steel wires is also expanding in recent years, with the maturity of manufacturing technology. The amount of aluminum enameled wire is also rising recently. It is no doubt that there is more fiber and less copper in the communication field continuously. There is a substantial progress of saving copper by using aluminum on airplanes. It is very important for saving energy and protecting environment through recycling copper and aluminum scrap directly. It is imperative under the situation to set up the recoverable networks of scrap wires of copper and aluminum.
Keywords: conductor using aluminum to save copper prospect
The development review of cathode materials for proton conducting solid oxide fuel cells
Zhao Ling,Xia Changrong
Strategic Study of CAE 2013, Volume 15, Issue 2, Pages 88-97
Energy crisis and environmental pollutions are the problems which the whole world is now facing for the sustainable development. Solid oxide fuel cells (SOFCs), which have been regarded as keystone for the future energy economy, have received considerable attention for their high energy conversion efficiency and low impact to environment as a mean of generating electricity. Proton conducting solid oxide fuel cells (H-SOFCs) have attracted much attention for their unique characters, such as great efficiency in fuel utilization, high electromotive force, high ionic transferring numbers and low activation energies for proton conduction. However, compared with oxygen-ion conducting SOFCs (O-SOFCs), the materials and theories on H-SOFC are just inchoate, especially for cathodes of H-SOFC. In H-SOFC, hydrogen is oxidized at the anode to form protons, which migrate through the electrolyte to the cathode, and undergo a half-cell reaction with oxygen to produce water, which makes the cathode reactions more complex compared with those of O-SOFC. Such distinguished characteristic of cathode reactions calls for intensive consideration on reaction mechanism and might lead to some special demands on the cathode materials. This review is focused on the hisrory of cathode materials for H-SOFC. The electrochemical performances and reaction models of different conduction mechanism cathode materials are summarized, providing some useful means and ways for the development and application of cathode materials for H-SOFC.
Keywords: solid oxide fuel cell proton conductor cathode material reaction model
Li4SiO4-coated LiNi0.5Mn1.5O4 as the high performance cathode materials for lithium-ion batteries
Shifeng YANG, Wenfeng REN, Jian CHEN
Frontiers in Energy 2017, Volume 11, Issue 3, Pages 374-382 doi: 10.1007/s11708-017-0494-2
Keywords: lithium-ion batteries cathode material LiNi0.5Mn1.5O4 lithium-ion conductor
Title Author Date Type Operation
The development review of cathode materials for proton conducting solid oxide fuel cells
Zhao Ling,Xia Changrong
Journal Article