Abstract:
Preparation process of electrode for battery, comprising first application step for forming first linear part by relatively moving first nozzle which discharges first active material linearly with respect to current collector to form a plural of first linear parts on current collector, first drying step for drying first linear parts, second application step for forming second linear part between first linear parts by relatively moving second nozzle which discharges second active material with respect to current collector, and second drying step for drying first linear part and second linear part, wherein height H1 of first linear part and height H2 of second linear part satisfies the relational inequality (1): H1
Abstract:
In a technology for manufacturing a battery electrode by applying an application liquid containing an active material, stripe-shaped pattern elements are formed at narrower intervals than before while contact between the pattern elements is avoided. While a nozzle 21 including a multitude of discharge openings in an X-direction is moved to scan in a Y-direction relative to a base material 110, an application liquid containing an active material is discharged from the respective discharge openings and applied to the base material 110. Between pattern elements 221 formed by a first scanning movement, pattern elements 222 are formed by applying the application liquid anew by a second scanning movement. By making the start positions of the pattern elements 221, 222 different in a scanning direction (Y-direction), contact between the pattern elements resulting from the spread of the application liquid at pattern element start ends is prevented.
Abstract:
In a technology for manufacturing a battery electrode by applying an application liquid containing an active material, stripe-shaped pattern elements are formed at narrower intervals than before while contact between the pattern elements is avoided. An application liquid containing an active material is applied onto a base material 11, which will become a current collector, by a nozzle-scan coating method, thereby forming stripe-shaped active material pattern elements P1, P3, P5, . . . parallel to each other and extending in a Y-direction. After liquid components are volatilized from the application liquid and spread base parts of the pattern elements are shrunk, pattern elements P2, P4, P6, . . . are formed by applying the application liquid in stripes between the already formed pattern elements. In this way, it can be prevented that the base parts approach each other and the pattern elements touch each other when the adjacent patterns are simultaneously formed.
Abstract:
A negative-electrode active material layer having an uneven pattern is formed on a surface of a copper foil as a negative-electrode current collector by applying an application liquid by a nozzle-scan coating method. Subsequently, an application liquid containing a polymer electrolyte material is applied by a spin coating method, thereby forming a solid electrolyte layer in conformity with the uneven pattern. Subsequently, an application liquid is applied by a doctor blade method, thereby forming a positive-electrode active material layer whose lower surface conforms to the unevenness and whose upper surface is substantially flat. A thin and high-performance all-solid-state battery can be produced by laminating an aluminum foil as a positive-electrode current collector before the application liquid is cured.
Abstract:
A negative-electrode active material layer having an uneven pattern is formed on a surface of a copper foil as a negative-electrode current collector by applying an application liquid by a nozzle-scan coating method. Subsequently, an application liquid containing a polymer electrolyte material is applied by a spin coating method, thereby forming a solid electrolyte layer in conformity with the uneven pattern. Subsequently, an application liquid is applied by a doctor blade method, thereby forming a positive-electrode active material layer whose lower surface conforms to the unevenness and whose upper surface is substantially flat. A thin and high-performance all-solid-state battery can be produced by laminating an aluminum foil as a positive-electrode current collector before the application liquid is cured.
Abstract:
Preparation process of electrode for battery, comprising first application step for forming first linear part by relatively moving first nozzle which discharges first active material linearly with respect to current collector to form a plural of first linear parts on current collector, first drying step for drying first linear parts, second application step for forming second linear part between first linear parts by relatively moving second nozzle which discharges second active material with respect to current collector, and second drying step for drying first linear part and second linear part, wherein height H1 of first linear part and height H2 of second linear part satisfies the relational inequality (1): H1
Abstract:
Stripe-shaped pattern elements 121 projecting from a surface of a substantially flat negative-electrode current collector 11 are formed by applying an application liquid containing a negative-electrode active material by a nozzle-scan coating method. Subsequently, an application liquid containing a solid electrolyte material is applied, for example, by a spin coating method to form a solid electrolyte layer 13. A thickness Te of the solid electrolyte layer 13 covering exposed surfaces 11a of the negative-electrode current collector exposed between the stripe-shaped pattern elements 121 is set to be smaller than a height Ha of the stripe-shaped pattern elements 121, taking into account that part of the application liquid applied on the stripe-shaped pattern elements 121 flows down toward the exposed surfaces 11a.
Abstract:
A negative-electrode active material layer formed between a negative-electrode current collector and a solid electrolyte layer has a line-and-space structure in which a plurality of stripe-shaped pattern elements extending in a Y direction are arranged while being separated from each other. A gradient at each contact point where the stripe-shaped pattern element, the negative-electrode current collector and the solid electrolyte layer are in contact with each other is made smaller than 90°.
Abstract:
A negative-electrode active material layer 12 contains Li4Ti5O12 as a negative-electrode active material, and a positive-electrode active material layer 14 contains LiCoO2 as a positive-electrode active material. A solid electrolyte layer 13 contains polyethylene oxide and polystyrene as an electrolyte material. Gradients of surfaces of stripe-shaped pattern elements 121 forming the negative-electrode active material layer 12 are smaller than 90° when viewed from a surface of the negative-electrode current collector 11. By such a construction, it is possible to construct a battery having a high capacity in relation to the used amount of the active materials and good charge and discharge characteristics.
Abstract translation:负极活性物质层12含有Li 4 Ti 5 O 12作为负极活性物质,正极活性物质层14含有作为正极活性物质的LiCoO 2。 固体电解质层13含有作为电解质材料的聚环氧乙烷和聚苯乙烯。 形成负极活性物质层12的条状图案元件121的表面的梯度从负极集电体11的表面观察时小于90°。通过这样的结构,可以构成电池 相对于活性物质的使用量具有高容量和良好的充放电特性。
Abstract:
A negative-electrode active material layer 12 contains Li4Ti5O12 as a negative-electrode active material, and a positive-electrode active material layer 14 contains LiCoO2 as a positive-electrode active material. A solid electrolyte layer 13 contains polyethylene oxide and polystyrene as an electrolyte material. Gradients of surfaces of stripe-shaped pattern elements 121 forming the negative-electrode active material layer 12 are smaller than 90° when viewed from a surface of the negative-electrode current collector 11. By such a construction, it is possible to construct a battery having a high capacity in relation to the used amount of the active materials and good charge and discharge characteristics.
Abstract translation:负极活性物质层12含有Li 4 Ti 5 O 12作为负极活性物质,正极活性物质层14含有作为正极活性物质的LiCoO 2。 固体电解质层13含有作为电解质材料的聚环氧乙烷和聚苯乙烯。 形成负极活性物质层12的条状图案元件121的表面的梯度从负极集电体11的表面观察时小于90°。通过这样的结构,可以构成电池 相对于活性物质的使用量具有高容量和良好的充放电特性。