The present invention provides a battery module, which includes: a plurality of battery cells which include electrode tabs, respectively; and one or more bus bars connected to the electrode tabs for electrically connecting the plurality of battery cells with each other, wherein each of the one or more bus bars includes a plate having one or more openings formed therein, and a plurality of adjacent electrode tabs among the electrode tabs are inserted into any one of the one or more openings of the plate to be electrically connected with each other.

A strip-shaped electrode sheet includes an electrode foil including a strip-shaped foil exposed portion in which the electrode foil is exposed, a strip-shaped active material layer extending in a longitudinal direction, and a strip-shaped insulator layer containing insulating resin and formed on an insulator-layer support portion along a one-side layer edge portion of the active material layer and between the foil exposed portion of the electrode foil and an active-material-layer support portion. The insulator layer is located lower than a top face of the active material layer toward the electrode foil and includes a slant coating portion covering at least a lower portion of a one-side slant portion of the active material layer and a foil coating portion extending from the slant coating portion in a width-direction one side and covering the insulator-layer support portion of the electrode foil.

A system and method for optimizing electrochemical cells including electrodes employing coordination compounds by mediating water content within a desired water content profile that includes sufficient coordinated water and reduces non-coordinated water below a desired target and with electrochemical cells including a coordination compound electrochemically active in one or more electrodes, with an improvement in electrochemical cell manufacture that relaxes standards for water content of electrochemical cells having one or more electrodes including one or more such transition metal cyanide coordination compounds.

In general, the present disclosure is directed to forming lithium ion battery (LIB) cells with structure and chemistry that achieves formation of a solid electrolyte interphase (SEI) layer that allows for operating in relatively high ambient temperature environments, e.g., up to and exceeding 60° C., while significantly reducing self-discharge amounts, e.g., relative to other LIB cells formed with SEI layers measuring about 1-2 nanometers in thickness. For example, one non-limiting embodiment of the present disclosure enables a self-discharge amount for a LIB cell of 10% or less over a four (4) week period of time when operating at an ambient temperature of 60 degrees Celsius.

In general, the present disclosure is directed to forming lithium ion battery (LIB) cells with structure and chemistry that achieves formation of a solid electrolyte interphase (SEI) layer that allows for operating in relatively high ambient temperature environments, e.g., up to and exceeding 60° C., while significantly reducing self-discharge amounts, e.g., relative to other LIB cells formed with SEI layers measuring about 1-2 nanometers in thickness. For example, one non-limiting embodiment of the present disclosure enables a self-discharge amount for a LIB cell of 10% or less over a four (4) week period of time when operating at an ambient temperature of 60 degrees Celsius.

A lithium-sulfur battery comprising a separator in which an adsorption layer including a radical compound having a nitroxyl radical site is formed, and in particular, to a lithium-sulfur battery suppressing elution of lithium polysulfide by using an adsorption layer including a radical compound having a nitroxyl radical site and optionally a conductive material on at least one surface of a separator. In the lithium-sulfur battery, elution and diffusion may be prevented by a radical compound having a nitroxyl radical site, a stable radical compound, adsorbing lithium polysulfide eluted from positive electrode, and in addition thereto, electrical conductivity is further provided to provide a reaction site of a positive electrode active material, and as a result, battery capacity and lifetime properties are enhanced.

A lithium-sulfur battery comprising a separator in which an adsorption layer including a radical compound having a nitroxyl radical site is formed, and in particular, to a lithium-sulfur battery suppressing elution of lithium polysulfide by using an adsorption layer including a radical compound having a nitroxyl radical site and optionally a conductive material on at least one surface of a separator. In the lithium-sulfur battery, elution and diffusion may be prevented by a radical compound having a nitroxyl radical site, a stable radical compound, adsorbing lithium polysulfide eluted from positive electrode, and in addition thereto, electrical conductivity is further provided to provide a reaction site of a positive electrode active material, and as a result, battery capacity and lifetime properties are enhanced.

Disclosed is a manufacturing method of a pouch battery. The pouch battery includes a shell and an energy conversion element, the energy conversion element being provided with an electrical connector protruding outward therefrom, the shell forming a closed cavity therein and being provided with a through hole; and the pouch battery further includes a terminal connected to the through hole in a sealed manner; the manufacturing method includes: placing the energy conversion element into the cavity; connecting the electrical connector to the terminal by welding; injecting electrolyte into the cavity and sealing the cavity; and activating the pouch battery.

Disclosed is a manufacturing method of a pouch battery. The pouch battery includes a shell and an energy conversion element, the energy conversion element being provided with an electrical connector protruding outward therefrom, the shell forming a closed cavity therein and being provided with a through hole; and the pouch battery further includes a terminal connected to the through hole in a sealed manner; the manufacturing method includes: placing the energy conversion element into the cavity; connecting the electrical connector to the terminal by welding; injecting electrolyte into the cavity and sealing the cavity; and activating the pouch battery.

Provided are a treatment apparatus and a treatment method treating a waste cleaning liquid discharged from a process of producing an electrode of a lithium-ion secondary battery, in which a liquid component and a solid component are efficiently separated from each other, and the liquid component can be sufficiently collected and subjected to volume reduction treatment. The treatment apparatus includes: a stirring tank stirring the waste cleaning liquid; a liquid feed line that takes out the waste cleaning liquid from the stirring tank; and a thin film evaporator evaporating a cleaning liquid in the waste cleaning liquid to separate the solid component. Then, in the treatment method, the waste cleaning liquid is stirred in the stirring tank, the waste cleaning liquid is supplied to the thin film evaporator in a state in which the solid component is diffused, and the cleaning liquid in the waste cleaning liquid is evaporated.