Abstract: To provide a laminated solid-state battery capable of allowing a high voltage to be obtained and the installation space to be reduced. A laminated solid-state battery (100) including a plurality of unit solid-state batteries (10, 10a). Each unit solid-state battery of the plurality of unit solid-state batteries (10, 10a) includes a positive electrode (101, 101a), a negative electrode (102, 102a), and a solid electrolyte (103). The plurality of unit solid-state batteries (10, 10a) are electrically connected to each other in series and housed in a single laminate cell (104). Preferably, the plurality of unit solid-state batteries (10, 10a) are electrically connected to each other in series inside the laminate cell (104).

Abstract: The present invention provides: a solid-state battery which is not susceptible to decrease of the discharging capacity even if charge and discharge are repeated; and a method for producing a solid-state battery, which enables the achievement of a good bonded interface between a solid electrolyte layer and a anode layer by a simple process. A solid-state battery 1 according to the present invention is provided with a cathode layer 20, a anode layer 30 and a solid electrolyte layer 40 that is arranged between the cathode layer 20 and the anode layer 30. The anode layer 30 is provided with an aluminum layer 31 that is in contact with the solid electrolyte layer 40, a lithium layer 32, and an aluminum-lithium alloy layer 33 that is arranged between the aluminum layer 31 and the lithium layer 32.

Abstract: Provided are: a positive electrode for solid-state batteries, which enables the achievement of high energy density, rate characteristics and durability; a solid-state battery; and a method for producing a solid-state battery. A positive electrode for solid-state batteries, which is provided with a collector and a positive electrode active material layer that contains a positive electrode active material, and which is configured such that: the ratio of the positive electrode active material, which is composed of primary particles, in the positive electrode active material layer is 60% by mass or more; the void fraction in the positive electrode active material layer is less than 20% by volume; and portions of the positive electrode active material layer other than the positive electrode active material, which is composed of primary particles, contain a solid electrolyte.

Abstract: A secondary battery (100) of the present invention includes: a laminate (101) formed by alternately laminating a positive electrode and a negative electrode via an electrolyte; on one sidewall (101a) side of the laminate, a positive electrode reinforcing member (102) attached to an end portion of a plate-shaped positive electrode collector which constitutes the positive electrode, and a positive electrode tab (103) which covers one sidewall (101a) surface of the laminate and is attached to an end portion of the positive electrode reinforcing member (102); on the other sidewall (101b) side of the laminate, a negative electrode reinforcing member (104) attached to an end portion of a plate-shaped negative electrode collector which constitutes the negative electrode, and a negative electrode tab (105) which covers the other sidewall (101b) surface of the laminate and is attached to an end portion of the negative electrode reinforcing member (104); and an outer package which encloses the laminate (101), the posit

Abstract: A secondary battery electrode 100 of the present invention includes: a plurality of metallic porous plates 101 superposed in a thickness direction T; and an electrode mixture 102 with which voids constituting the metallic porous plates 101 are filled, in which adjacent metallic porous plates 101 are press-jointed to each other.

Abstract: What is provided is a solid state battery and a solid state battery manufacturing method capable of more reliably preventing short-circuiting. A solid state battery includes: a first electrode piece in which a first electrode active material layer is formed on a first current collector layer; a second electrode piece in which a second electrode active material layer is formed on a second current collector layer; and a bag-shaped solid electrolyte layer which accommodates the first electrode piece, wherein the first electrode piece accommodated in the bag-shaped solid electrolyte layer and the second electrode piece are laminated so as to overlap each other in a plan view so that the first electrode active material layer and the second electrode active material layer are disposed so as to face each other with the solid electrolyte layer interposed therebetween.

Abstract: A secondary battery 100 of the present invention includes a laminate 104 formed by alternately laminating a positive electrode 102 and a negative electrode 103 with an electrolyte 101 disposed therebetween; a first rod-shaped member 106 and a second rod-shaped member 107 which each extends in one direction D; and a first plate-shaped member 108 and a second plate-shaped member 109 which fix a positional relationship between the first rod-shaped member 106 and the second rod-shaped member 107, in which the laminate 104 is wound around the first rod-shaped member 106, the second rod-shaped member 107, and a space interposed therebetween, and the laminate 104 is compressed toward a space 110.

Abstract: A cell holder (1) for holding a secondary battery cell (9) including a positive electrode active material, a negative electrode active material, and an electrolyte which is disposed between the positive electrode active material and the negative electrode active material and is in contact with both the positive electrode active material and the negative electrode active material, and for outputting power from the secondary battery cell (9), includes a cell holder body (30), and a pressing portion (10) which is supported by the cell holder body (30) and includes a disc spring (11) being in contact with a first end face of the secondary battery cell (9) in a first direction and pressing the first end face of the secondary battery cell (9) in a second direction opposite to the first direction.

Abstract: The secondary battery includes: a negative electrode layer sheet formed by laminating a negative electrode active material layer on each negative electrode current collector of a negative electrode current collector sheet in which the negative electrode current collectors adjacent to each other are partially connected at a bent connection portion; a positive electrode layer sheet formed by laminating a positive electrode active material layer on each positive electrode current collector of a positive electrode current collector sheet in which the positive electrode current collectors adjacent to each other are partially connected at a bent connection portion; and a solid electrolyte body disposed so as to clamp the negative electrode layer sheet from both sides. A solid battery laminate is formed by bending the negative electrode layer sheet, the positive electrode layer sheet, and the solid electrolyte body at the bent connection portions to form into a substantially zigzag shape.

Abstract: Provided is a solid electrolyte laminated sheet having a self-supporting property and capable of realizing a solid state battery having high output characteristics. A plurality of supports are used, a solid electrolyte is filled in each support to form a self-supporting sheet, and the self-supporting sheets are superimposed to form a solid electrolyte laminated sheet. Specifically, the solid electrolyte laminated sheet is configured by setting a layer of the solid electrolyte laminated sheet in contact with a positive electrode layer being the outermost layer as a self-supporting sheet in which a solid electrolyte resistant to oxidation is filled, and a layer in contact with a negative electrode layer being the opposite outermost layer as a self-supporting sheet in which a solid electrolyte resistant to reduction is filled.

Abstract: The disclosure provides a wound battery and a manufacturing method thereof, wherein the wound battery is a wound type easy to produce, and even when a sufficient lamination press pressure and confining pressure are applied, occurrence of cracking, chipping and the like is suppressed and yield is improved, and buckling, short circuits or falling-off of the composite material or the like is suppressed and safety is improved. It is a structure which maintains a flat portion functioning as a battery by pressing and restraining to be in a state as it is, and which does not dispose a composite material in curved portions not functioning as a battery.

Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes particles of a lithium-transition metal composite oxide that contains nickel in the composition thereof and has a layered structure. The particles have an average particle size DSEM based on electron microscopic observation in a range of 1 ?m to 7 ?m in which a ratio D50/DSEM of a 50% particle size D50 in volume-based cumulative particle size distribution to the average particle size based on electron microscopic observation is in a range of 1 to 4, and a ratio D90/D10 of a 90% particle size D90 to a 10% particle size D10 in volume-based cumulative particle size distribution is 4 or less.

Abstract: The disclosure provides a laminated battery that can realize a laminated structure in which electrode composite material portions are not displaced, can simplify the manufacturing process, and has improved production yield, and provides a manufacturing method thereof. A positive electrode structure and a negative electrode structure in comb shapes are respectively produced with electrode composite material layers positioned in advance, and these are fitted to produce a laminate serving as a battery.

Abstract: Provided is a secondary battery and a comb-type electrode. A negative electrode layer sheet formed by stacking a negative electrode active material layer on two surfaces of a negative electrode current collector and a positive electrode layer sheet formed by stacking a positive electrode active material layer on two surfaces of a positive electrode current collector are alternately stacked, and an electrolyte body is interposed between the negative electrode layer sheet and the positive electrode layer sheet adjacent in a stacking direction. Each of the negative electrode current collector and the positive electrode current collector includes a bent connecting part sandwiching a notch part and formed by bending two sides in directions opposite to each other. The bent connecting parts of the negative electrode current collectors adjacent in the stacking direction and the bent connecting parts of the positive electrode current collectors adjacent in the stacking direction are connected.

Abstract: Provided is a solid electrolyte sheet having a self-supporting property while having a small thickness and flexibility. The solid electrolyte sheet is formed using a support having a specific porosity and a specific thickness. Specifically, the solid electrolyte sheet is formed in which a solid electrolyte is filled in a support having a porosity of 60% or more and 95% or less and a thickness of 5 ?m or more and less than 20 ?m.

Abstract: The current collector plate arrangement structure of the bipolar solid-state battery includes a battery cell stack formed by stacking a plurality of solid-state battery cells each including a positive electrode active material layer, a negative electrode active material layer, and a solid electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer and in contact with the positive electrode active material layer and the negative electrode active material layer. The bipolar solid-state battery includes a positive electrode current collector and a negative electrode current collector on a side surface with respect to a stacking direction. Current collector plates and of the solid-state battery cells are arranged on at least one of a front surface serving as one end surface in the stacking direction and a rear surface serving as the other end surface in the stacking direction.

Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes particles of a lithium-transition metal composite oxide that contains nickel in the composition thereof and has a layered structure. The particles have an average particle size DSEM based on electron microscopic observation in a range of 1 ?m to 7 ?m in which a ratio D50/DSEM of a 50% particle size D50 in volume-based cumulative particle size distribution to the average particle size based on electron microscopic observation is in a range of 1 to 4, and a ratio D90/D10 of a 90% particle size D90 to a 10% particle size D10 in volume-based cumulative particle size distribution is 4 or less.

Abstract: An electrode for nonaqueous electrolyte secondary batteries, which is provided with a collector and a positive electrode active material layer that is arranged on the collector and contains a positive electrode active material. The positive electrode active material is configured to contain compound particles which have a layered structure composed of two or more transition metals, and which have an average particle diameter DSEM of from 1 ?m to 7 ?m (inclusive), a ratio of the 50% particle diameter D50 in a volume-based cumulative particle size distribution to the average particle diameter DSEM, namely D50/DSEM of from 1 to 4 (inclusive), and a ratio of the 90% particle diameter D90 in the volume-based cumulative particle size distribution to the 10% particle diameter D10 in the volume-based cumulative particle size distribution, namely D90/D10 of 4 or less. The positive electrode active material layer has a void fraction of 10-45%.

Abstract: The current collector plate arrangement structure of the bipolar solid-state battery includes a battery cell stack formed by stacking a plurality of solid-state battery cells each including a positive electrode active material layer, a negative electrode active material layer, and a solid electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer and in contact with the positive electrode active material layer and the negative electrode active material layer. The bipolar solid-state battery includes a positive electrode current collector and a negative electrode current collector on a side surface with respect to a stacking direction. Current collector plates and of the solid-state battery cells are arranged on at least one of a front surface serving as one end surface in the stacking direction and a rear surface serving as the other end surface in the stacking direction.

Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes particles of a lithium-transition metal composite oxide that contains nickel in the composition thereof and has a layered structure. The particles have an average particle size DSEM based on electron microscopic observation in a range of 1 ?m to 7 ?m in which a ratio D50/DSEM of a 50% particle size D50 in volume-based cumulative particle size distribution to the average particle size based on electron microscopic observation is in a range of 1 to 4, and a ratio D90/D10 of a 90% particle size D90 to a 10% particle size D10 in volume-based cumulative particle size distribution is 4 or less.