Disclosed are compositions, devices, systems and fabrication methods for stretchable composite materials and stretchable electronics devices. In some aspects, an elastic composite material for a stretchable electronics device includes a first material having a particular electrical, mechanical or optical property; and a multi-block copolymer configured to form a hyperelastic binder that creates contact between the first material and the multi-block copolymer, in which the elastic composite material is structured to stretch at least 500% in at least one direction of the material and to exhibit the particular electrical, mechanical or optical property imparted from the first material. In some aspects, the stretchable electronics device includes a stretchable battery, biofuel cell, sensor, supercapacitor or other device able to be mounted to skin, clothing or other surface of a user or object.

The present disclosure relates to electrodes comprising a polymer film and a substrate, wherein the polymer film has a thickness of about 5 nm to about 600 nm. The present disclosure also relates to electrochemical cells and batteries comprising the electrodes disclosed herein. The present disclosure also relates to methods of making the electrodes disclosed herein.

A three-dimensional electrode array for use in electrochemical cells, fuel cells, capacitors, supercapacitors, flow batteries, metal-air batteries and semi-solid batteries.

An electrode includes a first free-standing carbon network, an active material deposited above the first free-standing carbon network, and a second free-standing carbon network covering the active material. The first and second carbon networks are a binder, a conductive additive and a current collector to the electrode.

A metal-ion battery and a method for preparing the same are provided. The metal-ion battery includes a positive electrode, a separator, a negative electrode, and an electrolyte. The positive electrode is separated from the negative electrode via the separator, and the electrolyte is disposed between the positive electrode and the negative electrode. In particular, the electrolyte includes an ionic liquid, an aluminum halide, and a metal halide, wherein the metal halide is silver halide, copper halide, cobalt halide, ferric halide, zinc halide, indium halide, cadmium halide, nickel halide, tin halide, chromium halide, lanthanum halide, yttrium halide, titanium halide, manganese halide, molybdenum halide, or a combination thereof.

A metal-ion battery is provided. The metal-ion secondary battery includes a positive electrode, a first negative electrode, a first separator, a second negative electrode, a second separator, and a control element, wherein the first separator is disposed between the positive electrode and the first negative electrode, and the second separator is disposed between the first negative electrode and the second negative electrode. Furthermore, the control element is coupled to the first negative electrode and the second negative electrode, wherein the control element determines whether to electrically connect the first negative electrode to the second negative electrode.

A static battery with a non-conductive elastomeric or thermoplastic housing. The, battery housing is adapted to receive at least one anode assembly, at least one cathode assembly, and at least one bipolar electrode assembly. At least the bipolar electrode assembly is formed from a conductive plastic resin that is formed as a CPE sheet. A carbon material is affixed to the CPE sheet to form the bipolar electrode. The at least one cathode assembly, the at least one anode assembly and the at least one bipolar electrode assembly are received into the battery box such that a liquid, and/or gas seal is formed, between electrode assemblies. The battery housing has slots into which the electrode assemblies are received. When the electrode assemblies are received into the housing, cells are formed by the cooperation of the electrode assemblies and the battery housing. The cells are then filled with electrolyte such as zinc bromide and a lid is placed on the battery box. Once sealed the battery box is a liquid tight container for the battery.

An electrode arrangement of a battery cell (10) comprising a positive electrode layer (2) and a negative electrode layer (3), which are separated from one another in an electrically insulating manner by a separator layer (4), wherein the positive electrode layer (2) forms a plurality of first contacting sections (21) formed in each case for an electrical contacting of the positive electrode layer (2) by a first current conductor (81), and the negative electrode layer (3) forms a plurality of second contacting sections (31) formed in each case for an electrical contacting of the negative electrode layer (3) by a second current conductor (82).

A metal-ion battery are provided. The disclosure provides a metal-ion battery. The metal-ion battery includes a positive electrode; a negative electrode, wherein the negative electrode is a metal or an alloy thereof, the metal is Cu, Fe, Zn, Co, In, Ni, Sn, Cr, La, Y, Ti, Mn, or Mo; a separator, wherein the positive electrode is separated from the negative electrode by the separator; and an electrolyte, disposed between the positive electrode and the negative electrode. The electrolyte includes ionic liquid, aluminum halide.

The present invention provides a thin film forming composition for energy storage device electrodes, said composition containing a conductive carbon material, a dispersant, a solvent and a polymer that has a partial structure represented by formula (P1) in a side chain. ##STR00001##
(In the formula, L represents —O— or —NH—; R represents an alkylene group having from 1 to 20 carbon atoms; T represents a substituted or unsubstituted amino group, a nitrogen-containing heteroaryl group having from 2 to 20 carbon atoms or a nitrogen-containing aliphatic heterocyclic group having from 2 to 20 carbon atoms; and * represents a bonding hand.)