Process for the fabrication of an electrode structure comprising an electrochemically active material suitable for use in an energy storage device. The method includes electrodepositing the electrochemically active material onto an electrode in electrodeposition bath containing a non-aqueous electrolyte. The electrode structure can be used for various applications such as electrochemical energy storage devices including high power and high-energy lithium-ion batteries.

An apparatus for machining a web made of electrode material includes a track extending continuously between a web path and an offload path, and supports operatively coupled to the track and moveable continuously along the web path and the offload path. The track is operable to control a conveying speed of each support along the web path. Each support includes a work surface that engages with the web at a first end of the web path to convey the web in the down-web direction at the conveying speed along the web path between the first end and a second end of the web path. The web is disengaged from the work surface at the second end of the web path. The apparatus also includes a machining device operable to act on the web as the web is conveyed in the down-web direction at the conveying speed along the web path.

The present invention relates to a lithium secondary battery comprising: a current collector comprising a structure in a fabric form in which fiber bundles are cross-woven, wherein each of the fiber bundles is formed of sets of fiber yarns and each of the fiber yarns includes a polymer fiber and a metal layer surrounding the polymer fiber; and an electrode including an active material layer disposed on at least one surface of the current collector.

The present disclosure provides a preparation method of a composite current collector for a zinc secondary battery, a negative electrode plate, and a zinc secondary battery. The preparation method of the composite current collector for the zinc secondary battery comprises: 1) disposing a layer of carbon cloth between two layers of zinc mesh, thermally pressing the two layers of zinc mesh with the carbon cloth, and rolling the two layers of zinc mesh with the carbon cloth to obtain a pressed zinc mesh; 2) soaking the pressed zinc mesh in a graphene dispersion, then taking out and drying the pressed zinc mesh after soaking; and 3) coating two surfaces of the dried pressed zinc mesh with a conductive paste and drying to obtain the composite current collector for the zinc secondary battery.

Provided is a manufacturing method of a structural battery electrode. The structural battery electrode manufacturing method includes preparing a fiber fabric substrate; forming a metal nanoparticle layer by providing metal nanoparticles on the fiber fabric substrate; and forming a carbon nanotube layer by providing a carbon source on the metal nanoparticle layer.

A method for production of an electrode for a battery cell of an electrical energy storage device by a generator includes spraying an electrode powder onto a metallic substrate web by a spraying device of the generator and compressing the electrode powder onto the metallic substrate web by a stamping device of the generator. Before the spraying, the electrode powder is electrically charged by corona or tribological charging.

The invention relates to a device for providing a bobbin with a wound web-type material for a production machine for the energy cell-producing industry, comprising: at least one bobbin changing device anda bobbin handling device which is designed to supply the bobbin to the at least one bobbin changing device, whereinthe bobbin changing device and the bobbin handling device are arranged in a common air conditioning chamber, anda lock is provided which is designed such that the bobbin can be conveyed into the air conditioning chamber via the lock.

A fuel electrode incorporates a first and second corrugated portion that are attached to each other at offset angles respect to their corrugation axis and therefore reinforce each other. A first corrugated portion may extend orthogonally with respect to a second corrugated portion. The first and second corrugated portions may be formed from metal wire and may therefore have a very high volumetric void fraction and a high surface area to volume ratio (sa/vol). In addition, the strands of the wire may be selected to enable high conductivity to the current collectors while maximizing the sa/vol. In addition, the shape of the corrugation, including the period distance, amplitude and geometry may be selected with respect to the stiffness requirements and electrochemical cell application factors. The first and second corrugated portions may be calendared or crushed to reduce thickness of the fuel electrode.

A high-voltage, high-power battery for efficient energy storage and delivery is provided. It includes at least one anode crafted from lithium metal or zinc metal, paired with an organic cathode featuring an active material, specifically (ferrocenylmethyl) trimethylammonium iodide (FcNI), a ferrocene backbone introduced with methyltrimethylammonium iodide groups, denoted by formula (1):

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The battery also includes at least one porous polymer separator, characterized by a porosity ranging from approximately 30% to 90%, facilitating ion transport while maintaining structural integrity. Furthermore, the battery incorporates an ether electrolyte, enabling optimal electrochemical performance. It is worth noting that the introduced methyltrimethylammonium iodide groups enhances the redox activity of Fe.sup.3+/2+ and acts as active dual-redox centers for multiple electron transfer. Particularly, Fe.sup.3+/2+'s discharging plateau is enhanced to 0.8 V by introducing the methyltrimethylammonium iodide groups, which regulates the electron energy of the redox potential of Fe.

The present disclosure provides a porous electrode for a flow-through rechargeable electrochemical cell including a high-porosity metal current collector, an active material surrounding the metal current collector, and a self-supporting synthetic membrane material surrounding the active material. The present disclosure further includes a flow-through rechargeable battery including multiple electrochemical cells, a closed loop, and a pump.