摘要:
An embodiment of the present disclosure provides a structure that contributes to increasing the capacity density. A secondary cell according to an embodiment of the present disclosure includes a plurality of periodic unit structures that are arranged on a first surface. Each of those periodic unit structures includes a positive electrode layer and a negative electrode layer, each of which projects away from the first surface, and a solid electrolyte interposed between the positive electrode and negative electrode layers.
摘要:
A negative electrode for a lithium secondary battery capable of storing and releasing lithium reversibly includes a collector, and a negative electrode material layer arranged on the collector. The negative electrode material layer contains a thin-film negative electrode material capable of storing and releasing lithium reversibly, and lithium non-storing portions containing a lithium non-storing material are arranged on at least one selected from the group consisting of a surface and an inside of the negative electrode material layer. In this way, a negative electrode for a lithium secondary battery capable of suppressing the deformation accompanying charging and discharging is provided.
摘要:
A nonaqueous electrolyte secondary battery of the present invention includes a nonaqueous electrolyte and a positive electrode 13 that occludes lithium ions reversibly. The positive electrode 13 includes active material layers 13b and a sheet-like collector 13a that supports the active material layers 13b. The collector 13a contains aluminum and at least one element other than aluminum. The average composition that is obtained by averaging the ratio of the elements composing the collector 13a in the direction of the thickness of the collector 13a is equal to the composition of an alloy whose liquidus temperature is 630° C. or lower. The present invention makes it possible to prevent heat from being generated due to an internal short circuit in the nonaqueous electrolyte secondary battery.
摘要:
A nonaqueous electrolyte secondary battery of the present invention includes a nonaqueous electrolyte and a positive electrode 13 that occludes lithium ions reversibly. The positive electrode 13 includes active material layers 13b and a sheet-like collector 13a that supports the active material layers 13b. The collector 13a contains aluminum and at least one element other than aluminum. The average composition that is obtained by averaging the ratio of the elements composing the collector 13a in the direction of the thickness of the collector 13a is equal to the composition of an alloy whose liquidus temperature is 630° C. or lower. The present invention makes it possible to prevent heat from being generated due to an internal short circuit in the nonaqueous electrolyte secondary battery.
摘要:
A negative electrode for a non-aqueous electrolyte secondary battery including a current collector, and an electrode material layer including an electrode material capable of reversibly absorbing and desorbing Li ions is provided. The electrode material includes at least one element selected from the group consisting of Si, Sn and Al; the surface of the current collector is provided with protrusions; the electrode material layer is disposed on the surfaces of the current collector and the protrusions; and the protrusion has a portion facing the surface of the current collector other than a portion that is brought into contact with the current collector. Thus, a negative electrode for a non-aqueous electrolyte battery having high properties such as an energy density, charging/discharging cycle property, and the like, and a non-aqueous electrolyte secondary battery can be provided.
摘要:
A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including a layer of active material particles, a negative electrode including a layer of active material particles and a non-aqueous electrolyte. An organic film including a conductive agent and having a low affinity to the non-aqueous electrolyte is formed on a portion of at least one electrode selected from the positive electrode and the negative electrode. Accordingly, there are provided a non-aqueous electrolyte secondary battery that exhibits a small decrease in capacity during repeated charge/discharge, a method for producing the same and an electrode material for an electrolyte battery.
摘要:
An object of the present invention is to provide a high-energy density nonaqueous electrolyte secondary battery that controls the rise in temperature during short circuiting. Used is a nonaqueous electrolyte secondary battery 1, including a battery case 2, and a positive electrode plate 5 having a positive electrode current collector and a positive electrode mixture layer containing a cathode material capable of absorbing and desorbing lithium, a negative electrode plate 6 having a negative electrode current collector and a negative electrode mixture layer containing an anode material capable of absorbing and desorbing lithium, a separator 7 held between the positive and negative electrode plates, and a nonaqueous electrolyte that are enclosed in the battery case, wherein at least one of the positive electrode plate 5 and the negative electrode plate 6 has an electrode plate resistance, as determined in the charged state in the thickness direction when pressurized at 50 kg/cm2, of 0.4 Ω·cm2 or more.
摘要翻译:本发明的目的是提供一种控制短路时的温度上升的高能密度非水电解质二次电池。 使用的是具有电池壳体2的非水电解质二次电池1和具有正极集电体的正极板5和含有能够吸收和解吸锂的正极材料的正极合剂层,负极板6具有 含有能够吸收和解吸锂的负极材料的负极集电体和负极混合物层,保持在正极板和负极板之间的隔板7和封入电池壳体中的非水电解质,其中至少一个 正极板5和负极板6的电极板电阻在50kg / cm 2的加压下,在厚度方向的充电状态下测定为0.4Ω·cm 2·cm 2以上。
摘要:
A nonaqueous electrolyte secondary battery comprising a positive electrode 5, a negative electrode 6, a separator 7 and a nonaqueous electrolyte, wherein a material mixture layer containing an active material and a binder is formed on a surface of a current collector 51 of at least one of the positive electrode 5 and the negative electrode 6. The material mixture layer includes a first layer 52 and a second layer 53 which are different in volume ratio of the binder to the active material. The volume ratio (A) of the binder in the first layer 52 in contact with the surface of the current collector 51 is lower than the volume ratio (B) of the binder in the second layer 53.
摘要:
Disclosed is a glass composition composed of an oxide glass wherein the percentages of constitutional elements other than oxygen (O) expressed in atomic % are as follows: boron (B) is not less than 56% and not more than 72%; silicon (Si) is not less than 0% and not more than 15%; Zinc (Zn) is not less than 0% and not more than 18%; potassium (K) is not less than 8% and not more than 20%; and the total of K, sodium (Na) and lithium (Li) is not less than 12% and not more than 20%. This glass composition further may contain at least one of magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba) in an amount of more than 0% and not more than 5%, and molybdenum (Mo) and/or tungsten (W) in an amount of more than 0% and not more than 3%.
摘要:
Disclosed is a glass composition composed of an oxide glass wherein the percentages of constitutional elements other than oxygen (O) expressed in atomic % are as follows: boron (B) is not less than 56% and not more than 72%; silicon (Si) is not less than 0% and not more than 15%; Zinc (Zn) is not less than 0% and not more than 18%; potassium (K) is not less than 8% and not more than 20%; and the total of K, sodium (Na) and lithium (Li) is not less than 12% and not more than 20%. This glass composition further may contain at least one of magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba) in an amount of more than 0% and not more than 5%, and molybdenum (Mo) and/or tungsten (W) in an amount of more than 0% and not more than 3%.