Metal electrodes, more specifically lithium-containing anodes, high performance electrochemical devices, such as secondary batteries, including the aforementioned lithium-containing electrodes, and methods for fabricating the same are provided. In one or more embodiments, an anode electrode structure is provided and includes a current collector comprising copper, a lithium metal film formed on the current collector, a copper film formed on the lithium metal film, and a protective film formed on the copper film. The protective film is a lithium-ion conducting film can include lithium-ion conducting ceramic, a lithium-ion conducting glass, or ion conducting liquid crystal.

A printed battery that supplies a transmission and/or reception unit of an RFID tag with an electrical current of at peak ≥ 400 mA includes a layer stack having an anode configured as a layer that contains particulate metallic zinc or a particulate metallic zinc alloy as an active electrode material and a first resilient binder or binder mixture, and a cathode configured as a layer that contains a particulate metal oxide as an active electrode material, at least one conductivity additive to control the electrical conductivity of the cathode, and a second resilient binder or binder mixture, and a separator configured as a layer that electrically insulates the anode and the cathode from one another, a first electrical conductor in direct contact with the anode, and a second electrical conductor in direct contact with the cathode, and a housing that encloses the layer stack.

Disclosed are a positive electrode plate, a preparation method therefor and the use thereof. The positive electrode plate comprises a current collector and an active substance layer formed on the current collector, wherein the active substance layer comprises a positive electrode active material, a conductive agent and a binder, with the binder comprising a polymer with the structural formula as shown in formula I, which polymer comprises chain segments a, b and c. The positive electrode plate not only has a low preparation cost, but can also significantly improve the high-temperature storage and high-temperature cycle performance of a lithium-ion battery.

Provided is a bipolar current collector, including an insulation film layer, a positive electrode metal layer, and a negative electrode metal layer. The insulation film layer has a first surface and a second surface in a thickness direction. The insulation film layer has a first region portion. In a length direction of the current collector, a part of a first surface located at the first region portion has a first exposed region and a first coated region. A part of a second surface located at the first region portion has a second exposed region and a second coated region. On a symmetry surface, as reference plane, of the insulation film layer in the thickness direction, a projection of the first coated region does not exceed a projection of the second exposed region, and a projection of the second coated region does not exceed a projection of the first exposed region.

Additives for energy storage devices comprising cyclodextrin-based compounds and their derivatives are disclosed. The energy storage device comprises a first electrode and a second electrode, where at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, and an electrolyte composition. Cyclodextrin-based compounds may serve as additives to the first electrode, the second electrode, and/or the electrolyte.

Batteries according to embodiments of the present technology may include a housing including a first terminal disposed on a first side of the housing and a second terminal disposed on the first side of the housing. The batteries may include an electrode stack positioned within the housing. The electrode stack may include an anode current collector. The anode current collector may define an anode tab along a first side of the anode current collector, and be electrically coupled with the first terminal. The electrode stack may include a cathode current collector. The cathode current collector may define a cathode tab along a second side of the cathode current collector. The cathode tab may extend from the cathode current collector in a direction normal to a direction the anode tab extends from the anode current collector. The cathode tab may be electrically coupled with the second terminal.

Some aspects of the disclosure are related to lithium batteries, and more specifically, to integrated battery electrode and separator. In some embodiments, an electrochemical cell comprises a single integrated unit comprising insulating layer, current collectors, electroactive material layers, separators, and the like. Methods of manufacturing of the integrated battery unit are disclosed herein. Some embodiments of the disclosure are also directed to an integrated anode-free electrochemical cell that lacks an anode or anode electroactive material layer. In some such embodiments, methods directed to electrical storage and use of such an anode-free electrochemical cell are disclosed herein.

Electrodes and methods of forming electrodes are described herein. The electrode can be an electrode of an electrochemical cell or battery. The electrode includes a current collector and a film in electrical communication with the current collector. The film may include a carbon phase that holds the film together. The electrode further includes an electrode attachment substance that adheres the film to the current collector.

A negative electrode material includes silicon-based particles and graphite particles. In a case that a D.sub.n50/D.sub.v50 ratio of the graphite particles is A and a D.sub.n50/D.sub.v50 ratio of the silicon-based particles is B, the following conditional expressions (1) to (3) are satisfied: 0.1≤A≤0.65 (1); 0.3≤B≤0.85 (2); and B>A (3), where, D.sub.v50 is a particle diameter of particles measured when a cumulative volume fraction in a volume-based distribution reaches 50%, and D.sub.n50 is a particle diameter of particles measured when a cumulative number fraction in a number-based distribution reaches 50%. The present invention further provides a negative electrode plate, a lithium-ion secondary battery or electrochemical device containing the negative electrode plate, and an electronic device containing the lithium-ion secondary battery and/or electrochemical device.

A method of manufacturing a structure, the method comprising: obtaining a flowable liquid comprising a homogenous mixture of an active material and a binding material; generating a plurality of droplets from the flowable liquid; and depositing the plurality of generated droplets on a support, wherein the plurality of droplets self-assemble to form a continuous structure, wherein the continuous structure comprises a plurality of microstructure units, and wherein the active material and the binding material self-segregate to form a non-uniform distribution of the active material and the binding material in each of the units.