A negative electrode for a lithium secondary battery including a protective layer formed with a conductive fabric, in particular, to a negative electrode for a lithium secondary battery including a conductive fabric formed on at least one surface of the lithium metal layer and having pores, and a lithium secondary battery including the same. The lithium secondary battery including a negative electrode having the conductive fabric as a protective layer that induces uniform reactions within the pores, thus preventing local lithium metal formation on the lithium metal surface, and thereby suppressing dendrite formation on the lithium metal surface, and thereby suppressing dendrite formation and cell volume expansion. In addition thereto, mechanical stability can be maintained even when lithium plating and stripping occurs due to the flexibility and tension/contraction of the conductive fabric.

A battery cell includes an anode, a cathode, and a separator between the anode and the cathode, wherein at least one of the anode or the cathode includes at least a carbon fiber ply comprising carbon fibers, the carbon fiber ply having a thickness of less than 90 micrometers. Also disclosed are a battery and an aircraft including such battery cell, and a method for manufacturing such battery cell.

A non-aqueous electrolyte solution battery includes a positive electrode containing manganese dioxide and a carbon material; a negative electrode including one of lithium and a lithium alloy; a non-aqueous electrolyte solution; and a container configured to accommodate the positive electrode, the negative electrode, and the non-aqueous electrolyte solution. In a spectrum that is measured by performing Raman spectroscopic analysis with respect to the positive electrode by using argon laser at a wavelength of 514.5 nm, an average value of peak intensity ratios I.sub.D/I.sub.G of an intensity I.sub.D of a peak appearing in the vicinity of 1330 cm.sup.1 to an intensity I.sub.G of a peak appearing in the vicinity of 1580 cm.sup.1 satisfies a relationship of 0.5I.sub.D/I.sub.G1.3.

A manufacturing method for an aluminum nonwoven fiber material includes: a block forming procedure where molten aluminum is extruded into a space through micropores (42a) and, moreover, aluminum fibers formed by extrusion are maked fall on a predetermined support surface (43), thereby forming an aluminum fiber block on the support surface (43); a short fiber removing procedure in which removing treatment on aluminum short fibers shorter than a predetermined length from the aluminum fiber block is performed; and a pressurization procedure in which the aluminum fiber block subjected to the short fiber removing procedure is pressurized to form the aluminum nonwoven fiber material.

A rechargeable lithium-sulfur cell comprising a cathode, an anode, a separator electronically separating the two electrodes, a first electrolyte in contact with the cathode, and a second electrolyte in contact with the anode, wherein the first electrolyte contains a first concentration, C.sub.1, of a first lithium salt dissolved in a first solvent when the first electrolyte is brought in contact with the cathode, and the second electrolyte contains a second concentration, C.sub.2, of a second lithium salt dissolved in a second solvent when the second electrolyte is brought in contact with the anode, wherein C.sub.1 is less than C.sub.2. The cell exhibits an exceptionally high specific energy and a long cycle life.

An electrode structure includes a mesh substrate and a nanomaterial. The nanomaterial contains oxide of group IVA element and grows on the mesh substrate. A method of manufacturing the electrode structure and a rechargeable battery including the electrode structure are also provided.

A battery technology, and more particularly, a current collector may be widely used in secondary batteries, and an electrode may employ such technology. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core including a plurality of metal filaments, and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.

There is provided a positive electrode active material composite for a lithium-ion secondary battery, in which, when using as a positive electrode active material of the lithium-ion secondary battery, it can effectively improve high-temperature cycle characteristics. In the positive electrode active material composite for a lithium-ion secondary battery, only on the surface of a lithium transition metal oxide secondary particle (A) composed of one or more of the lithium transition metal oxide particles represented by the following formula (I): LiNi.sub.aCo.sub.bMn.sub.cM.sup.1.sub.xO.sub.2 . . . (I) or the following formula (II): LiNi.sub.dCO.sub.eAl.sub.fM.sup.2.sub.yO.sub.2 . . . (II), a lithium-based polyanion particles (B) is composited with lithium transition metal oxide particles under a specific condition, the lithium-based polyanion particles (B) being represented by the following formula (III) or (III): Li.sub.gMn.sub.hFe.sub.iM.sup.3.sub.zPO.sub.4 . . . (III) or Mn.sub.hFe.sub.iM.sup.3.sub.zPO.sub.4 . . . (III) and being supporting carbon (C) on a surface thereof.

The present invention relates to a secondary battery structure having a windable flexible polymer matrix solid electrolyte and a manufacturing method thereof. The manufacturing method comprises the steps of electroplating a positive electrode on a first side of a cloth solid electrolyte; then electroplating a negative electrode on a second side opposite to the first side of the cloth solid electrolyte; and conducting a heat treatment process to form a first carbonized layer between the positive electrode and the cloth solid electrolyte, and a second carbonized layer between the negative electrode and the cloth solid electrolyte.

The present invention provides a three-dimensional current collector used in a metal secondary battery and the preparation method of said current collector. Said current collector is a three-dimensional porous hollow carbon fiber current collector which has both porous structure and hollow structure and is used to load metal anode, so that lithium dendrites growth can be suppressed and the Coulombic efficiency can be improved. Said current collector is intertwined by micrometer-sized hollow carbon fibers with the diameter of 1 to 50 m, the wall thick of 0.5 to 6 m, and the pore volume of 0.005 to 0.05 cm.sup.3 cm.sup.2.