An organic electrochemical cell includes a cathode including a quinone compound, an anode including dipotassium terephthalate, an electrolyte, and a separator disposed between the anode and the cathode, the organic electrochemical cell configured such that, during a discharging operation, potassium ions travel through the separator and the electrolyte to the cathode.

The electrolyte according to the present disclosure is an electrolyte that conducts alkali metal ions and is used for producing an energy storage device. The electrolyte includes an organic crystal layer including a layered structure, the layered structure including an organic skeletal layer including aromatic dicarboxylic acid anions having an aromatic ring structure and an alkali metal element layer including an alkali metal element to which oxygen included in carboxylic acid anions of the organic skeletal layer are coordinated to form a skeleton, and an organic solvent charged in the organic crystal layer.

The electrolyte according to the present disclosure is an electrolyte that conducts alkali metal ions and is used for producing an energy storage device. The electrolyte includes an organic crystal layer including a layered structure, the layered structure including an organic skeletal layer including aromatic dicarboxylic acid anions having an aromatic ring structure and an alkali metal element layer including an alkali metal element to which oxygen included in carboxylic acid anions of the organic skeletal layer are coordinated to form a skeleton, and an organic solvent charged in the organic crystal layer.

A process for fabrication of a battery that includes providing a colloidal suspension of particles conducting lithium ions and providing two conducting substrates as battery current collectors, at least one surface of the conducting substrates being at least partially coated with one of a cathode film and an anode film, and depositing an electrolyte film by electrophoresis, from a suspension of electrolyte material particles, on at least one of said anode film, said cathode film and said conducting substrates.

A process for fabrication of a battery that includes providing a colloidal suspension of particles conducting lithium ions and providing two conducting substrates as battery current collectors, at least one surface of the conducting substrates being at least partially coated with one of a cathode film and an anode film, and depositing an electrolyte film by electrophoresis, from a suspension of electrolyte material particles, on at least one of said anode film, said cathode film and said conducting substrates.

A battery includes an electrode body having a winding structure, and an electrolyte solution. The electrode body and the electrolyte solution are accommodated in a case. The electrode body includes: a positive electrode that includes a positive electrode lead, and has a belt shape; a negative electrode that includes a negative electrode lead, and has the belt shape; and a separator that is provided between the positive electrode and the negative electrode, and has the belt shape. The positive electrode lead and the negative electrode lead are led out from a first end face of the electrode body. The electrode body includes a molded part of the separator, and the molded part protrudes from a second end face.

A battery includes an electrode body having a winding structure, and an electrolyte solution. The electrode body and the electrolyte solution are accommodated in a case. The electrode body includes: a positive electrode that includes a positive electrode lead, and has a belt shape; a negative electrode that includes a negative electrode lead, and has the belt shape; and a separator that is provided between the positive electrode and the negative electrode, and has the belt shape. The positive electrode lead and the negative electrode lead are led out from a first end face of the electrode body. The electrode body includes a molded part of the separator, and the molded part protrudes from a second end face.

An all-solid secondary battery includes a cathode layer including a cathode active material layer; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the anode layer includes an anode current collector and a first anode active material layer is disposed on the anode current collector, wherein the first anode active material layer includes an organic electrolyte and an anode active material that is capable of forming an alloy with lithium or a compound with lithium, and wherein the organic electrolyte includes an organic salt including an organic cation and an anion.

An all-solid secondary battery includes a cathode layer including a cathode active material layer; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the anode layer includes an anode current collector and a first anode active material layer is disposed on the anode current collector, wherein the first anode active material layer includes an organic electrolyte and an anode active material that is capable of forming an alloy with lithium or a compound with lithium, and wherein the organic electrolyte includes an organic salt including an organic cation and an anion.

A battery includes a first electrode, a first solid electrolyte layer in contact with the first electrode, a second electrode, and a second solid electrolyte layer located between the second electrode and the first solid electrolyte layer and in contact with the second electrode and the first solid electrolyte layer. An organic compound content of the first solid electrolyte layer is smaller than an organic compound content of the second solid electrolyte layer, and a thickness of the first solid electrolyte layer is smaller than a thickness of the second solid electrolyte layer.