▎ 摘　　要

NOVELTY - The battery (20) has two or more cells (10A-10C) comprising two electrodes (22, 24) selected from a first electrode containing a sulfur-containing electroactive material and a second electrode containing a negative electroactive material. A first capacitor electrode (30) contains a positive capacitor active material. A second capacitor electrode contains a negative capacitor active material. Each electrode is positioned adjacent to a surface of a current collector and a separator (26) is positioned between adjacent electrodes, to effect electrical separation between the first and second electrodes, the first electrode and the second capacitor electrode, the second electrode and the first capacitor electrode, and the first and second capacitor electrodes. The two or more cells contains the first electrode and the second electrode and no cell contains both the first electrode and the first capacitor electrode or both the second electrode and the second capacitor electrode. USE - Capacitor-backed lithium-sulfur battery for battery-powered vehicle such as motorcycles, boats, tractors, buses, motorcycles, mobile homes, caravans and tanks and portable consumer electronic device and electric motor for electrified vehicle, laptop computer, tablet computer, cell phone, and cordless power tools or appliances. Uses but are not limited to electrochemical cells and energy storage devices such electrochemical cells used in a variety of other industries and applications, e.g. in aerospace components, in consumer goods, appliances, buildings e.g. houses, offices, sheds and warehouses, office equipment and furniture and in machines for industry, in agricultural or agricultural equipment or in heavy machinery. ADVANTAGE - The negative capacitor active material that forms the capacitor-based interlayer is blended with an electronically conductive material that provides an electron conduction path and/or with polymeric binder material that improves the structural integrity of the electrode. The positive capacitor-active material forms the capacitor-based interlayer is blended with an electronically conductive material that provides an electron conduction path and/or with polymeric binder material that improves the structural integrity of the electrode. The negative electroactive material forming the negative electrode is mixed with one or more electrically conductive materials that provide an electron conductive path and polymeric binder material that improves the structural integrity of the negative electrode. The capacitor-backed lithium-sulfur batteries offers several advantages, such as improved performance and improved long-term performance. The performance is improved through the incorporation of capacitor component layers or materials. Multiple lithium-sulfur battery cells are electrically connected in an electrochemical device to increase overall performance. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of an electrochemical battery cell having a lithium ion capacitor cathode. Cell (10A-10C) Capacitor-backed lithium-sulfur battery (20) Electrode (22,24) Separator (26) Capacitor electrode (30)