Abstract: A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on the current collector, the negative active material including a carbon negative active material; wherein: an electrode density of the negative electrode is in the range of about 1.0 g/cc to about 1.5 g/cc, and a DD (Degree of Divergence) value as defined by the following Equation 1 is about 24 or greater, DD (Degree of Divergence)=(Ia/Itotal)*100??[Equation 1] wherein, in Equation 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuK? ray, and Itotal is a sum of peak intensities at all angles measured by XRD using a CuK? ray.

Abstract: A battery pack including a housing having a first portion and a second portion coupled to the first portion. The first portion has a first wall and an interface extends from the first wall. The interface includes a plurality of terminal apertures that provide access to electrical terminals within the housing. The second portion has a second wall, and the second wall is positioned opposite the first wall. A first plurality of vents extends through the first wall and a second plurality of vents extends through the second wall. A cumulative surface area of the first plurality of vents is different than a cumulative surface area of the second plurality of vents.

Abstract: The utility model discloses a rechargeable battery including a cover and a main body, the main body being connected to the cover on which a negative end is disposed, and the body being provided with a positive end; the main body including an interface, a first housing and a second housing, the first housing being connected to the second housing, and the interface being connected to the first housing, wherein the first housing and the second housing are buckled to form an accommodating space, and the interface which is a male connector outwards extends from the inside of the accommodating space. The negative electrode of the rechargeable battery is provided with the cover; a user can perform charging via the interface by opening the cover to expose the interface disposed therein; and the interface is the male connector which can be directly plugged in an electronic product with a receptacle.

Abstract: An anode active material, an anode including the anode active material; and a lithium secondary battery including the anode, the anode active material including a core including a carbonaceous material; and a polycyclic compound on a surface of the core, the polycyclic compound being represented by Formula 1:

Abstract: An electrochemical device including a positive electrode current collector; a first protruding portion including a plurality of positive electrodes in electrical contact with the positive electrode current collector, and a first dented portion disposed between each positive electrode of the plurality of positive electrodes; an electrolyte layer including a second protruding portion and a second dented portion respectively disposed on the first protruding portion including the plurality of positive electrodes and the first dented portion disposed between each positive electrode of the plurality of positive electrodes; and a negative electrode current collector layer including a third protruding portion and a third dented portion respectively disposed on the second protruding portion and the second dented portion of the electrolyte layer.

Abstract: A battery pack assembly (1) comprising two holding frames (3), wherein the two holding frames (3) hold a plurality of cells (2) between them, each cell (2) being held longitudinally between the two holding frames (3), wherein two or more of the plurality of cells (2) are connected by a conductive means (7), and wherein the two holding frames (3) are reversibly held together by a fastening means (10), wherein the fastening means (10) cause terminals of the cells (2) to be urged against the conductive means (7) and removal or loosening of the fastening means (10) enables the cells (2) to be freed from the assembly (1), at least one holding frame (3) comprising one or more elastomeric protrusions (6) and wherein the conductive means (7) are positioned such that parts of them lie between one or more elastomeric protrusions (6) and one or more cell terminals, such that the urging of the frames (3) together by the fastening means (10) causes the conductive means (7) to be urged into contact by the elastomeric protr

Abstract: To provide a lithium-ion storage battery or electronic device that is flexible and highly safe. One embodiment of the present invention is a flexible storage battery including a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, an exterior body that surrounds the positive electrode, the negative electrode, and the separator, and a wiring provided along the exterior body. At least part of the wiring is more easily breakable by deformation than the exterior body. The wiring is more vulnerable to deformation than the exterior body and thus damaged earlier than the exterior body. Damage to the wiring is detected and an alert is sent to a user; thus, the use of the storage battery can be stopped before the exterior body is damaged.

Abstract: Provided are an all-solid state secondary battery including a positive electrode active material layer, a negative electrode active material layer, and a solid electrolyte layer and being coated with an exterior material layer, in which at least a part of the exterior material layer is a rubber-coating layer having a gas transmission coefficient of less than 40 cc·20 ?m/m2·24 h·atm, an exterior material for an all-solid state secondary battery, and a method for manufacturing an all-solid state secondary battery.

Abstract: This application provides a negative electrode plate, a secondary battery, a battery module, a battery pack, and an apparatus. The negative electrode plate includes a negative current collector and a plurality of active substance layers on the negative current collector. The plurality of active substance layers include at least a first active substance layer and a second active substance layer. The first active substance layer includes a first negative active substance, and the second active substance layer includes a second negative active substance. A ratio of gram capacity of the negative active substance of the first active substance layer to thickness of the first active substance layer is 3.5-10.0. A ratio of gram capacity of the negative active substance of the second active substance layer to thickness of the second active substance layer is 6.5-23.0.

Abstract: A composite material is provided. The composite material includes carbon layers and metal compound layers alternately and repeatedly stacked. Each of the metal compound layers includes molybdenum and selenium. When the composite material is used as a positive active material for a lithium selenium secondary battery, selenium is separated from the metal compound layer through a preliminary charge/discharge process. In addition, the composite material may be used as negative active materials of a lithium ion battery and a lithium ion capacitor. Furthermore, the composite material may be used as an active material of a positive electrode of the lithium selenium secondary battery.

Abstract: A battery comprising a high capacity electrode construction may include layering of the electrode and/or low active material loading.

Abstract: To provide a conductive carbon material dispersing agent for a lithium ion battery, a slurry for a lithium ion battery electrode, an electrode for a lithium ion battery, and a lithium ion battery The disclosure provides a conductive carbon material dispersing agent for a lithium ion battery including a water-soluble poly(meth)acrylamide (A-1) which contains 2 to 60 mol % of structural units derived from a (meth)acrylamide group-containing compound (a) and 10 to 70 mol % of structural units derived from an unsaturated sulfonic acid or salts thereof (b), and which has a weight average molecular weight of 10,000 to 300,000.

Abstract: The present invention relates to a lithium composite oxide, a positive electrode active material for a lithium secondary battery including the lithium composite oxide, and a lithium secondary battery using a positive electrode including the positive electrode active material.

Abstract: The present invention relates to a negative electrode for a lithium secondary battery and a lithium secondary battery comprising the same.

Abstract: A solid electrolyte according to the present disclosure is represented by the following compositional formula (1). Li7?x+y(La3?ySry)(Zr2?xMx)O12??(1) In the formula (1), x and y satisfy 0.20?x<1.50 and 0.00<y<0.30, and M is two or more types of elements selected from the group consisting of Nb, Ta, and Sb.

Abstract: A rechargeable lithium battery includes a negative active material including: a secondary particle including a core in which a plurality of primary particles are agglomerated, the primary particles including a natural graphite; and a coating layer including amorphous carbon and surrounding the core, wherein a Raman peak intensity ratio of a D peak (1350 cm?1 to 1370 cm?1) to a D? peak (1570 cm?1 to 1620 cm?1) (ID/ID?) of the negative active material is about 3.2 to about 3.8, and a lattice constant La of the negative active material is about 30 nm to about 45 nm.

Abstract: A solid electrolyte according to the present disclosure is represented by the following compositional formula (1). Li7(La3-xBix)Zr2O12??(1) In the formula (1), x satisfies 0.05<x<0.40.

Abstract: The present disclosure provides electrolyte solutions for electrodeposition of zinc-manganese alloys, methods of forming electrolyte solutions, methods of electrodepositing zinc-manganese alloys, and multilayered zinc-manganese alloys. An electrolyte solution for electroplating can include a metal salt, boric acid, an alkali metal chloride, polyethylene glycol, and a hydroxy benzaldehyde. An electrolyte solution can be formed by dissolving a metal salt, boric acid, an alkali metal chloride, polyethylene glycol, and a hydroxy benzaldehyde in water or an aqueous solution. Electrodepositing zinc-manganese alloys on a substrate can include introducing a cathode and an anode into an electrolyte solution comprising a metal salt, boric acid, an alkali metal chloride, polyethylene glycol, and a hydroxy benzaldehyde. Electrodepositing can further include passing a current between the cathode and the anode through the electrolyte solution to deposit zinc and manganese onto the cathode.

Abstract: A secondary battery, a preparation method thereof, and an apparatus including the secondary battery are described.

Abstract: Disclosed are an anode material for lithium secondary batteries, the anode material including an Si-based anode active material and a film layer formed as a double self-assembled monolayer as the result of an amino trimethoxy silane (ATS) SAM precursor and a fluoro ethylene carbonate (FEC) SAM precursor being sequentially bonded to the surface of the Si-based anode active material, and method of manufacturing the same.