Electrochemical energy storage cell and battery

An electrochemical energy storage cell having a layered construction, comprising at least one electrode having

• a. a first electrically insulating substrate and a first electrical conductor layer extending on an area of the first electrically insulating substrate,
• b. a second electrically insulating substrate and a second electrical conductor layer extending on an area of the second electrically insulating substrate,
• c. a first electrode layer composed of a positive electrode material,
• d. a second electrode layer composed of a negative electrode material,
• e. a first separator layer,
• f. a stacked arrangement of the layers in order:
• the first electrically insulating substrate—the first electrical conductor layer—the first electrode layer—the first separator layer—the second electrode layer—the second electrical conductor layer—the second electrically insulating substrate,
• g. a first electrolyte enabling an ion flow between the electrode layers, and further comprising at least one supercapacitor region having
• h. a first supercapacitor layer of a supercapacitor material,
• i. a second supercapacitor layer of a supercapacitor material,
• j. a second separator layer,
• k. a second electrolyte enabling an ion flow between supercapacitor layers, wherein
• l. in the at least one supercapacitor region a section of the first electrical conductor layer is covered with the first supercapacitor layer and a section of the second electrical conductor layer is covered with the second supercapacitor layer, and
• m. in the at least one supercapacitor region the supercapacitor layers lie one above another in a stacked arrangement in order:
• the first electrically insulating substrate—the first electrical conductor layer—the first supercapacitor layer—the second separator layer—the second supercapacitor layer—the second electrical conductor layer—the second electrically insulating substrate.