A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiO.sub.x, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.

A battery charging system includes a battery removably mounted on an electric power device using electric power, a charging device configured to charge the battery using renewable power which is electric power generated from renewable energy, and a server configured to communicate with the charging device. The charging device is configured to control charging of the battery accommodated in an accommodation unit on the basis of reception information received from the server. The server is configured to compare receivable power, which is the renewable power capable of being received by the charging device, with a threshold value and configured to transmit transmission information for causing the charging device to control the charging of the battery to the charging device on the basis of a result of comparing the receivable power with the threshold value.

A battery includes: a casing that includes a plurality of exterior faces having outer faces facing mutually-different directions and has an arrangement concave part formed; a cell that is housed inside the casing; and a connector that includes a connection terminal connected to an electrode terminal of a connection apparatus and is arranged in the arrangement concave part, in which a face forming the arrangement concave part of the casing is formed as a concave part forming face, and the concave part forming face is present between the exterior faces and the connector.

A secondary battery includes a battery element including a positive electrode, a negative electrode, and an electrolytic solution, a housing member configured to accommodate the battery element, and a safety valve mechanism attached to the housing member. The safety valve mechanism includes a valve member including an opening valve portion configured to be opened; and an opening member including a plurality of opening portions radially arranged in a region opposed to the opening valve portion from a center of the region as a base point, and a plurality of protrusion portions radially arranged in a region outside the plurality of opening portions from the center and the plurality of protrusion portions protrude toward the plurality of opening portions. A number of the opening portions and a number of the protrusion portions are equal to each other, and each of the plurality of opening portions and each of the plurality of protrusion portions are opposed to each other in a direction toward the center.

An alkaline dry battery includes a battery case, a hollow cylindrical positive electrode accommodated in the battery case, a negative electrode disposed in the hollow portion of the positive electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution contained in the positive electrode, the negative electrode and the separator. The alkaline dry battery further includes a layer principally including a compound containing a polyoxyethylene group between the positive electrode and the inner surface of the battery case.

Provided is an all-solid-state battery module including: an all-solid-state battery with a voltage in excess of 0 V; a switching element connected in series with the all-solid-state battery; a control unit that controls on/off of the switching element; and a trigger input path connected to the control unit, where a trigger that causes the switching element to transition to an on state is input via the trigger input path.

The present disclosure provides an atomizing device and an assembling method thereof. The atomizing device includes a first body and a second body. The first body includes a first outer case and an atomizing component. The atomizing component is disposed in the first outer case. The second body is detachably connected to the first body, wherein the second body includes a second outer case, a controlling component, and a battery component. The controlling component is disposed on one side of the second outer case close to the atomizing component, wherein the controlling component is electrically connected to the atomizing component. The battery component is disposed on one side of the second outer case away from the atomizing component, wherein the battery component is electrically connected to the controlling component.

The present disclosure provides an atomizing device comprising an atomizing component, a controlling component, and a battery component. The atomizing component comprises an induction coil and an atomizing piece. The controlling component is disposed on one side of the atomizing component, wherein the controlling component comprises a substrate, a first elastic connecting piece, a second elastic connecting piece, and a first conductive protrusion. The substrate has a first surface and a second surface. The first elastic connecting piece is disposed on the first surface, wherein the first elastic connecting piece is electrically connected to the atomizing piece. The second elastic connecting piece is disposed on the first surface, wherein the second elastic connecting piece is electrically connected to the induction coil. The first conductive protrusion is disposed on the second surface. The battery component is disposed on one side of the controlling component away from the atomizing component.

Various aspects of the disclosure generally relate to a battery bracket for electronic devices. In one aspect, an electronic component includes a printed circuit board (PCB) having a first and a second battery contact. Connected to the PCB is a battery bracket having a first, a second and a third foot, each foot extending in a first plane. At least one of the feet is connected to the first battery contact. Each of the first, second and third feet are coupled to a first, a second and a third sidewall, respectively.

The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.