The present application discloses s an electrochemical cell (battery) comprising a hydrogen storage negative electrode (anode), a positive electrode (cathode) and a solid proton-conducting electrolyte in contact with the electrodes. The solid proton-conducting electrolyte comprises a silicon material which comprises at least 35 at % silicon.

The use of a methylated amorphous silicon alloy as the active material in an anode of Li-ion battery is described. Lithium storage batteries and anodes manufactured using the material, as well as a method for manufacturing the electrodes by low-power PECVD are also described.

A method for fabricating a solid state battery device. The device can include electrochemically active layers and an overlaying barrier material, with an inter-digitated layer structure configured with a post terminated lead structure. The method can include forming a plurality of battery device cell regions (1-N) formed in a multi-stacked configuration, wherein each of the battery device cell regions comprises a first current collector and a second current collector. The method can also include forming a thickness of a first and second lead material to cause formation of a first and second lead structure to interconnect each of the first and second current collectors associated with each of the plurality of battery device cell regions and to isolate each of the second current collectors extending spatially outside of the battery device cell region within a first and second isolated region, respectively.

A battery is disclosed that includes an anode, a graded interface layer disposed on the anode, a cathode positioned opposite to the anode, an electrolyte, and a separator. The anode may output lithium ions during cycling of the battery. A graded interface layer may be disposed on the anode and include a tin fluoride layer. A tin-lithium alloy region may form between the tin fluoride layer and the anode. The tin-lithium alloy region may produce a lithium fluoride uniformly dispersed between the anode and the tin fluoride layer during operational cycling of the battery. The electrolyte may disperse throughout the cathode and the anode. The separator may be positioned between the anode and cathode. In some aspects, the battery may also include lithium electrodeposited on one or more exposed surfaces of the anode.

An electrochemical cell including an electrode-separator composite having an anode, at least one separator and a cathode, wherein the anode comprises an anode current collector having a surface consisting of at least one metal and has been laden with at least one layer of a negative active electrode material, the cathode comprises a cathode current collector having a surface consisting of at least one metal and has been laden with at least one layer of a positive active electrode material, and the surface of the anode current collector and/or the surface of the cathode current collector comprises at least one clear region not laden with the respective active electrode material, and in the at least one clear region the surface of the anode current collector and/or the surface of the cathode current collector has been coated with a support material of greater thermal stability than the surface coated therewith.

This invention provides compositions comprising coated particles comprising silicon in which the coating is comprised of carbon and one or more lithium silicates, the coated particles comprising silicon having a carbon content of about 0.10 wt % or more and a lithium content of about 1 wt % or more, relative to the total weight of the coated particle. Processes for preparing these compositions are also provided.

The present disclosure provides an embodiment of an integrated structure that includes a first electrode of a first conductive material embedded in a first semiconductor substrate; a second electrode of a second conductive material embedded in a second semiconductor substrate; and a electrolyte disposed between the first and second electrodes. The first and second semiconductor substrates are bonded together through bonding pads such that the first and second electrodes are enclosed between the first and second semiconductor substrates. The second conductive material is different from the first conductive material.

A secondary battery includes a first electrode collector layer and a second electrode collector layer, which face each other, a plurality of first active material layers that electrically contact the first electrode collector layer and are substantially perpendicular to the first electrode collector layer, a plurality of second active material layers that electrically contact the second electrode collector layer and are substantially perpendicular to the second electrode collector layer, and a first conductor layer that electrically contacts the first electrode collector layer and is inserted into the plurality of first active material layers.

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A composition of matter suitable for usage as a formative material for a lithium-sulfur battery cathode is provided. The composition of matter may include a carbon structure formed by multiple carbon particles interconnected to one another. Each carbon particle may include pores and exposed surfaces. In this way, an electrically conductive material (ECM) (e.g., silver and/or antimony) may be deposited in the pores and coated (e.g., conformally coated) on the exposed surfaces of respective carbon particles. In addition, at least some carbon particles may disintegrate and provide exposed surfaces prior to deposition of the ECM. For example, disintegrated carbon particles may have a greater surface-area-to-volume ratio than whole carbon particles, thereby providing an increased amount of surface area available for subsequent ECM deposition. In addition, in some aspects, an active material may be infiltrated in one or more carbon particles and pores.

This application relates to a negative electrode plate, a secondary battery and apparatus thereof. The secondary battery of the present application comprises a negative electrode plate, the negative electrode plate comprises a composite current collector and a negative electrode active material layer disposed on at least one surface of the composite current collector, the negative electrode active material layer comprises a silicon-based active material, the silicon-based active material accounts for 0.5 wt % to 50 wt % of total mass of the negative electrode active material layer, and the composite current collector comprises a polymer support layer and a metal conductive layer disposed on at least one surface of the polymer support layer, and the composite current collector has a brittleness parameter C ranging from 0.03 to 0.5. The secondary battery and the negative electrode plate achieve good coordination between the current collector and the negative electrode active material layer.