Abstract: A spring connector includes: an insulating housing having a through hole; a conductor disposed on one end side of the through hole; and a conductive external contact pin disposed on another end side of the through hole. The housing has an opening portion on the other end side of the through hole. A part of the through hole and a part of the conductor form an internal space. The external contact pin includes a tip end portion configured to protrude from the opening portion and a main body portion positioned in the through hole. The external contact pin and the conductor are configured to be switched between a non-conductive state and a conductive state by moving the tip end portion of the external contact pin in a backward direction opposite to a protruding direction in which the tip end portion protrudes from the opening portion.

Abstract: A sealing mechanism is disposed inside an electrical member capable of securing waterproofness with a simple structure. The cable sealing mechanism of the electrical member includes a gasket having cable through-gasket-holes through which a cable passes, and being made of an elastic body, sockets (first socket, second socket) of an electronic component (light emitting element) that operate by supplying power via the cable, a cover that covers the electronic component, the sockets, and the gasket, and a bracket that sandwiches the electronic component, the sockets, and the gasket together with the cover. The gasket is disposed between the sockets and the bracket. By attaching the cover to the bracket, the gasket comes into close contact with an inner wall of the cover, the cable through-gasket-holes come into close contact with the covering portion of the cable, and a space between the cover and the gasket is sealed.

Abstract: Provided is a connector capable of firmly maintaining a connection state. A connector 1 includes a first clamp portion 10 having a press receiving portion 11 and a second clamp portion 30 having a press portion 31a. At least one of the press receiving portion 11 and the press portion 31a includes metal. When the second clamp portion 30 is fixed to the first clamp portion 10 or a housing that holds the first clamp portion 10, a linear conductor inserted from one end portion side of the press receiving portion 11 is clamped between the press portion 31a and the press receiving portion 11, comes into contact with the press portion 31a and the press receiving portion 11, and is bent between the one end portion and the press portion 31a.

Abstract: A connector for holding a linear conductor by a first contact portion and a second contact portion is provided. The linear conductor is inserted through an insertion portion. The first contact portion is formed in a pressing portion configured to be deformed elastically to press the linear conductor against the second contact portion. The second contact portion is formed in a fixed portion which is not deformed elastically and the second contact portion has at least one edge portion.

Abstract: A connector for holding a linear conductor by a first contact portion and a second contact portion is provided. The linear conductor is inserted through an insertion portion. The first contact portion is formed in a pressing portion configured to be deformed elastically to press the linear conductor against the second contact portion. The second contact portion is formed in a fixed portion which is not deformed elastically and the second contact portion has at least one edge portion.

Abstract: A current collector including a first principal plane and a second principal plane with a roughness of a first principal plane and a roughness of a second principal plane being mutually different.

Abstract: A current collector including a first principal plane and a second principal plane with a roughness of a first principal plane and a roughness of a second principal plane being mutually different.

Abstract: A current collector including a first principal plane and a second principal plane. In the current collector, the roughness of the first principal plane and second principal plane being mutually different.

Abstract: A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.

Abstract: A current collector including a first principal plane and a second principal plane. In the current collector, the roughness of the first principal plane and second principal plane being mutually different.

Abstract: A current collector includes a first principal plane and a second principal plane. In the current collector, the roughness of the first principal plane and second principal plane being mutually different.

Abstract: A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.

Abstract: A battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The node has an anode current collector and an anode active material layer provided thereon, and the anode active material layer contains a plurality of anode active material particles having silicon, and a metal material having a metal element not being alloyed with an electrode reactant in a gap between the anode active material particles.

Abstract: A battery realizing the superior cycle characteristics is provided. An electrode includes a current collector including an active-material-layer-formation region and a flat and smooth region having a surface roughness smaller than that of the active-material-layer-formation region, and an active material layer provided in the active-material-layer-formation region of the current collector. An electrode lead is connected to the flat and smooth region.

Abstract: A battery capable of improving cycle characteristics is provided. An anode includes: an anode active material layer including an anode active material on an anode current collector, the anode active material including silicon (Si) and having a plurality of pores, in which after electrode reaction, the volumetric capacity of a pore group with a diameter ranging from 3 nm to 200 nm both inclusive per unit weight of silicon is 0.3 cm3/g or less, and the rate of change in the amount of mercury intruded into the plurality of pores is distributed so as to have a peak in a diameter range from 200 nm to 15000 nm both inclusive, the rate of change in the amount of mercury intruded being measured by mercury porosimetry.

Abstract: A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.

Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution, wherein the positive electrode includes a first lithium composite oxide and a second lithium composite oxide expressed by the following equation (1), as a positive electrode active material, and a charge capacity (vs lithium metal) per unit volume during a charge and discharge of a first cycle is larger in the second lithium composite oxide compared to the first lithium composite oxide, and a discharge voltage (vs lithium metal) during the charge and discharge of the first cycle is lower in the second lithium composite oxide compared to the first lithium composite oxide, Li1+a(MnbCocNi1-b-c)1-aO2 . . . (1), where a, b, and c satisfy relationships of 0<a?0.25, 0.5?b<0.7, and 0?c<1?b.

Abstract: A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.

Abstract: There is provided a battery including a positive electrode that includes an active material layer formed on a positive electrode current collector; a negative electrode that includes active material layers formed on first and second principal planes of a negative electrode current collector and the active material layer on the second principal plane has an alloyed region smaller than an alloyed region the active material layer has on the first principal plane between the second principal plane and the current collector; and an electrolyte.

Abstract: A battery capable of improving cycle characteristics is provided. An anode includes: an anode active material layer including an anode active material on an anode current collector, the anode active material including silicon (Si) and having a plurality of pores, in which after electrode reaction, the volumetric capacity of a pore group with a diameter ranging from 3 nm to 200 nm both inclusive per unit weight of silicon is 0.3 cm3/g or less, and the rate of change in the amount of mercury intruded into the plurality of pores is distributed so as to have a peak in a diameter range from 200 nm to 15000 nm both inclusive, the rate of change in the amount of mercury intruded being measured by mercury porosimetry.