| 摘要 |
The invention relates to a polymer, more specifically a polymer electrolyte and cathode material for an alkali metal cell, in particular for a lithium-sulfur cell. In order to improve the performance and safety of alkali metal cells, e.g. lithium-sulfur cells, a polymer based on general chemical formula (I) is disclosed where -[A]- represents a unit forming a polymer backbone, X represents a spacer, x represents the number of spacers X and is 1 or 0, Q represents a positively charged group Q+ and a counterion Z-, or Q represents a negatively charged group Q- and a counterion Z+, or Q represents an uncharged group. The invention further relates to the use thereof as well as to a cathode, a separator, a protective layer, and a cell. |
