Tech Highlights
was prepared by Colm Glynn and David McNulty of University College Cork, Ireland, David Enos of Sandia National Laboratories, Zenghe Liu of Verily Life Science, and Donald Pile of Rolled-Ribbon Battery Company. Each article highlighted here is available free online.
Performance of Three-Dimensional LiMn2O4/Carbon Composite Cathodes Prepared Via Sol-Gel Impregnation
With the ever advancing improvements in electronics and display technologies, it is crucial that Li-ion batteries are able to rise to the challenge of powering next generation consumer electronics. Consequently, the development of electrode materials for Li-ion batteries that are capable of delivering high capacities with stable capacity retention is of the utmost importance. Researchers from the University of Bremen have investigated the fabrication of 3D composite cathodes consisting of LiMn2O4 particles deposited directly onto an electrically conductive matrix of carbon fibres via sol-gel impregnation. The electrochemical performance of the composite cathodes was evaluated as a function of the number of sol impregnation steps. Through systematic galvanostatic cycling, the researchers determined that high capacity cathodes could be obtained from increased filling of the carbon matrix with the LMO sol. A cathode sample after four filling cycles demonstrated a discharge capacity of 132mAh g-1 after 50 cycles, corresponding to ~89% of the theoretical capacity of LiMn2O4.
Additionally, as a proof-of-concept, LMO cathodes were cycled against Lithium Titanate (LTO) anodes in a solid state battery (SSB) setup. The evaluation of these cells offers valuable insight for future SSB applications.


A new issue of ECS Transactions (ECST) has just been published from the XXXI National Congress of the Mexican Society of Electrochemistry/9th Meeting of the ECS Mexican Section.
Ajit Khosla is a professor at Yamagata University in Yonezawa, Japan and a visiting professor at San Diego State University’s College of Engineering. Khosla’s work in the area of nano-microsystems has resulted in more than 100 scientific and academic contributions. Khosla has recently been named associate editor for the
The
Since 1902, ECS has been at the forefront of publishing electrochemical and solid state science and technology research. For the past 115 years, the Society has been publishing high quality, peer-reviewed journals that contain the work of renowned scientists, engineers, investors, and Nobel laureates. Now, ECS is providing researchers a new avenue to offer insights into emerging or established fields:
ECS is providing an opportunity for new authors to ask questions and get educated about ECS’s publications.
The open access movement has bolstered content dissemination worldwide, but it has also led to the rise of “predatory publishers.” Instead of prioritizing the quality of the content, predatory journals exist to take advantage of the pay-to-publish open access system, enforcing a lax or non-existent peer review system while charging authors processing fees to publish their work.