A rechargeable manganese battery includes: (1) a first electrode including a porous, conductive support; (2) a second electrode including a catalyst support and a catalyst disposed over the catalyst support; and (3) an electrolyte disposed between the first electrode and the second electrode to support reversible precipitation and dissolution of manganese at the first electrode and reversible evolution and oxidation of hydrogen at the second electrode.

A main object of the present disclosure is to provide a cathode active material with excellent capacity properties. In order to achieve the object, the present disclosure provides a cathode active material to be used in a fluoride ion battery wherein the cathode active material mainly contains a metal element M and a metal element M′; the metal element M is at least one kind of Cu, Fe and Mn; and the metal element M′ is at least one kind of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Yb.

A method for recycling lithium-ion battery materials is provided. The method includes isolating a composite electrode comprising an electrode material adhered to a current collector with a polyvinylidene difluoride (PVDF) binder. The composite electrode is combined with triethyl phosphate (TEP) as a solvent to form a mixture. The electrode material is delaminated from the current collector in the mixture to give a free electrode material and a free current collector. Each of the free electrode material and the free current collector is recovered from the mixture. The free electrode material may be reused to prepare another composite electrode, as well as a lithium-ion battery comprising the same, which are also disclosed.

Embodiments of the present disclosure generally relate to systems and methods for in-line measurement of alkali metal-containing structures or alkali ion-containing structures of, e.g., electrodes. In an embodiment, a system for processing an electrode is provided. The system includes a first processing chamber for forming an electrode comprising an alkali metal-containing structure. The system further includes a metrology station coupled to and in-line with the first processing chamber, the metrology station comprising: a source of radiation for delivering radiation to the alkali metal-containing structure, and an optical detector for receiving an emission of radiation emitted from the alkali metal-containing structure, and a processor configured to determine a characteristic of the alkali metal-containing structure of the electrode based on the emission of radiation.

The present disclosure relates to how to engineer reversible elasticity in thin films and/or layers and/or substrates, using a repeated Y-shaped motif, which is cut out through the film and/or layer and/or substrate. As an example, using a 75 μm thick polyimide (PI) foil, macroscopic dog-bone shaped structures with a range of geometrical parameters of the Y shape have been prepared according to an embodiment of the present disclosure. The tensile strain response of the film at its point of fracture was then recorded. The structures were also confirmed using finite element modeling. Upon stretching, the PI ligaments locally deflect out of plane, allowing the foil to macroscopically stretch.

Power sources that enable in-body devices, such as implantable and ingestible devices, are provided. Aspects of the in-body power sources of the invention include a solid support, a first high surface area electrode and a second electrode. Embodiments of the in-power sources are configured to emit a detectable signal upon contact with a target physiological site. Also provided are methods of making and using the power sources of the invention.

A copper foil having high fracture energy after heat treatment to be strong against breakage is disclosed. Also disclosed are an electrode for secondary batteries and a secondary battery exhibiting, by including the copper foil, excellent characteristics in terms of, for example, cycle lifespan, safety, and workability.

An apparatus for holding a circuit against a battery module includes a set of first fixtures for holding a set of first conductive tabs of the circuit against a corresponding set of positive terminals of the battery module, a set of second fixtures for holding a set of second conductive tabs of the circuit against a corresponding set of negative terminals of the battery module, and a rigid plate having a set of first structures therein for receiving the set of first fixtures and having a set of second structures therein for receiving the set of second fixtures.

An all-solid secondary battery, including: a cathode; an anode; and a solid electrolyte layer disposed between the cathode and the anode, wherein the anode comprises an anode current collector; a first anode active material layer in contact with the anode current collector and comprising a first metal; a second anode active material layer disposed between the first anode active material layer and the solid electrolyte layer and comprising a carbon-containing active material; and a contact layer between the second anode active material layer and the solid electrolyte layer, and disposed such that the contact layer prevents contact between the second anode active material layer and the solid electrolyte layer, wherein the contact layer comprises a second metal, and has a thickness less than a thickness of the first anode active material layer.

Electrolytes and electrolyte additives for energy storage devices comprising sulfonate or carboxylate salt based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein 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, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a sulfonate or carboxylate salt based compound.