An electrode, process for preparing the electrode and devices thereof. An electrode comprising at least one metal deposited on a substrate; and at least one electrically conducting polymer. The devices comprising the electrode for energy storage and molecular separation.

An electric storage device includes an electrode assembly, an insulating cover covering the electrode assembly, and a case including a case body having a rectangular box shape and including an opening, the case body being configured to house the electrode assembly and the insulating cover. The insulating cover is formed into a rectangular box shape conforming to the case body. An embossing is applied to the insulating cover.

An electric storage device includes an electrode assembly, an insulating cover covering the electrode assembly, and a case including a case body having a rectangular box shape and including an opening, the case body being configured to house the electrode assembly and the insulating cover. The insulating cover is formed into a rectangular box shape conforming to the case body. An embossing is applied to the insulating cover.

An electrode current collector including a metal foil wherein a coating layer is formed on one or both surfaces of the metal foil, and a contact angle with pure water of the surface of the coating layer at a side opposite to the metal foil side is 30° or more.

An electrode current collector including a metal foil wherein a coating layer is formed on one or both surfaces of the metal foil, and a contact angle with pure water of the surface of the coating layer at a side opposite to the metal foil side is 30° or more.

A porous insulator is provided. The porous insulator comprises a porous structure comprising a polymer compound having communicating pores, and a solid having a melting point or glass transition temperature lower than that of the polymer compound.

A porous insulator is provided. The porous insulator comprises a porous structure comprising a polymer compound having communicating pores, and a solid having a melting point or glass transition temperature lower than that of the polymer compound.

Provided is a bi-polar electrode for a battery, wherein the bi-polar electrode comprises: (a) a current collector comprising a conductive material foil (e.g. metal foil) having a thickness from 10 nm to 100 μm and two opposed, parallel primary surfaces, wherein one or both of the primary surfaces is coated with a layer of graphene material having a thickness from 10 nm to 10 μm; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two sides of the current collector, each in physical contact with the layer of graphene material or directly with a primary surface of the conductive material foil (if not coated with a graphene material layer). Also provided is a battery comprising multiple (e.g. 2-300) bipolar electrodes internally connected in series. There can be multiple bi-polar electrodes that are connected in parallel.

An electrode assembly of a rechargeable battery is configured by stacking electrode-accommodating separators, each accommodating a positive electrode, and negative electrodes. A case has rectangular long side walls facing flat surfaces of the electrode assembly. Also, the electrode-accommodating separator has stretchabilities according to directions, and has a direction in which the stretchability is higher than in other directions. The electrode-accommodating separators are arranged such that the direction along which the stretchability is high is aligned with the direction with which the long sides of the long side walls are aligned.

An electrode assembly of a rechargeable battery is configured by stacking electrode-accommodating separators, each accommodating a positive electrode, and negative electrodes. A case has rectangular long side walls facing flat surfaces of the electrode assembly. Also, the electrode-accommodating separator has stretchabilities according to directions, and has a direction in which the stretchability is higher than in other directions. The electrode-accommodating separators are arranged such that the direction along which the stretchability is high is aligned with the direction with which the long sides of the long side walls are aligned.