Good practice guide for papers on batteries for the Journal of Power Sources

In the introduction (i.e., the initial section of a scientific paper) it is mandatory to present the topic of the research and state the background and relative rationale (if applied). In this section the authors should also explain the aim and novelty of the research work. It is not necessary, except for review papers, to describe the full history of well-known types of batteries (especially for lithium ion batteries and sodium ion batteries, for which many reviews are available in literature), but instead to emphasize the state-of-the-art and challenges of the specific research topic. The cited literature should be relevant and up-to-date, i.e., results from references published more than five years ago (three years for hot topics, such as Ni-rich cathodes for lithium ion batteries or solid-state electrolytes) cannot be considered up-to-date. No detailed conclusion-style paragraph should be included in the introduction section.