Provided is an all-solid-state battery with high charge-discharge efficiency, and a method for producing the all-solid-state battery. Disclosed is an all-solid-state battery, wherein a lithium metal precipitation-dissolution reaction is used as an anode reaction; wherein the all-solid-state battery comprises a cathode comprising a cathode layer, an anode comprising an anode current collector and an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer; wherein the anode layer contains, as an anode active material, a single β-phase alloy of a lithium metal and a magnesium metal; and wherein a percentage of the lithium element in the alloy is 81.80 atomic % or more and 99.97 atomic % or less when the all-solid-state battery is fully charged.

A method for manufacturing an electrode assembly according to an embodiment of the present invention may include applying a positive electrode active material to at least a portion of a positive electrode collector, applying a negative electrode active material to at least a portion of a negative electrode collector, The method may include interposing a separator between a positive electrode and a negative electrode, and respectively removing a positive electrode insulating layer and a negative electrode insulating layer from at least partial areas of a positive electrode tab, which is not coated with the positive electrode active material, and an negative electrode tab, which is not coated with the negative electrode active material in the negative electrode collector. The method may include connecting a positive electrode lead and a negative electrode lead to the positive electrode tab and the negative electrode tab, respectively.

According to the metal foil fatigue test system and metal foil fatigue test method of the present invention, the fatigue degree and lifespan of the metal foil may be easily predicted by injecting gas into the tube of a roll structure and discharging the gas to simulate charge/discharge of the electrode assembly.

Disclosed is an anode-free all-solid-state battery having improved charge/discharge cycle stability. Specifically, the anode-free all-solid-state battery includes a cathode layer containing a cathode active material, an anode current collector layer, and a solid electrolyte layer interposed between the cathode layer and the anode current collector layer, wherein the anode current collector layer has a surface roughness (Rq) of 100 nm to 1,000 nm.

A method of making anode active material including silicon, elemental sulfur and a polymer material for an electrochemical energy storage device, includes mixing together silicon particles, elemental sulfur, and at least one polymer to form a mixture; coating the mixture onto a copper current collector to form a coated copper current collector; and subjecting the coated copper current collector to a temperature treatment. An electrochemical energy storage device includes the anode active material, cathode and electrolyte.

A negative electrode for a lithium-metal secondary battery, which has a wide specific surface area and a current density distribution that can be uniformly implemented, and a lithium-metal secondary battery including the same.

A negative electrode for a lithium metal battery, a manufacturing method thereof, and a lithium battery including the same. An adhesive layer including a binder and a conductive material between the negative current collector and the negative active material improves conductivity while also improving adherence between a negative current collector and a negative active material of the lithium battery.

According to an aspect of the present invention, provided is a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector, a positive electrode active material layer which is formed on the positive electrode current collector except for an exposed part of the positive electrode current collector, and an inorganic filler layer formed at a boundary part between the exposed part of the positive electrode current collector and the positive electrode active material layer. A stacking part in which the inorganic filler layer is overlaid with the positive electrode active material layer is formed at the boundary part, and an end surface of the positive electrode active material layer closer to the boundary part is covered with the inorganic filler layer.

Systems and methods utilizing water soluble (aqueous) PAA-based polymer binders for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and a pyrolyzed water soluble PAA-based polymer blend, wherein the water soluble PAA-based polymer blend comprises PAA and one or more additional water-soluble polymer components. The electrode coating layer may include more than 70% silicon and the anode may be in a lithium ion battery.

Lithium metal anodes have a current collector foil laminated to a layer of lithium metal (or alloy) which has particulate materials at least partially embedded therein to reduce dendrite formation and thus improve the performance and cycle life of the anode. The lithium anodes are conveniently produced using a roller press process.