Lithium battery cathodes being made using novel sol-gel method

September 26, 2005

Preparation and characterization of Li1-xNi1+xO2 powder used as cathode materials

Lithium batteries increasingly permeate our lives in all manner of electrical devices. Researchers from Thailand report on a study that investigates the use of the sol-gel method to produce battery cathodes from a new material. They describe their findings in the online materials journal AZojomo*.

For some time LiNiO2 has been a promising cathode material due to its large discharge capacity and low cost. Unfortunately traditional reactions used to make the material are difficult to control in relation to stoichiometry and grain size distribution. The sol-gel method allows easier control over stoichiometry, submicron-size particles and good homogeneity while being faster and done at lower temperatures. The purpose of this research is to find the optimum condition for preparation of Li1-xNi1+xO2 powder by a sol-gel method with subsequent calcination at different temperature and time in air.

The optimum condition was determined in order to obtain the product with the best electrochemical performance.

The entire article can be viewed at http://www.azom.com/Details.asp?ArticleID=3024
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*AZojomo publishes high quality articles and papers on all aspects of materials science and related technologies. All the contributions are reviewed by a world class panel of editors who are experts in a wide spectrum of materials science. [See http://www.azom.com/Journal%20Editorial%20Board.asp]

AZojomo is based on the patented OARS (Open Access Rewards System) publishing protocol. The OARS protocol represents a unique development in the field of scientific publishing - the distribution of online scientific journal revenue between the authors, peer reviewers and site operators with no publication charges, just totally free to access high quality, peer reviewed materials science. [See http://www.azom.com/azojomo.asp and http://www.azom.com/oars.asp]

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