摘要:
The present invention relates to a negative electrode material for non-aqueous electrolyte secondary batteries, characterized in that the negative electrode material comprises a composite particle including solid phases A and B, the solid phase A being dispersed in the solid phase B, and the ratio (IA/IB) of the maximum diffracted X-ray intensity (IA) attributed to the solid phase A to the maximum diffracted X-ray intensity (IB) attributed to the solid phase B satisfies 0.001≦IA/IB≦0.1, in terms of a diffraction line obtained by a wide-angle X-ray diffraction measurement of the composite particle. This negative electrode material is capable of suppressing of pulverization thereof due to repeated cycles. Further, the use of this negative electrode material allows production of a non-aqueous electrolyte secondary battery having a high capacity and an excellent cycle life characteristic.
摘要翻译:非水电解质二次电池用负极材料技术领域本发明涉及一种非水电解质二次电池用负极材料,其特征在于,所述负极材料包括固相A和固体B的复合粒子,固相A分散在固相B中, (固体A)的最大衍射X射线强度(I A A)的最大衍射峰值(I / A / B) 归因于固相B的X射线强度(I B B)满足0.001≤I≤A B> 通过复合粒子的广角X射线衍射测定得到的衍射线。 该负极材料由于重复循环而能够抑制其粉碎。 此外,通过使用该负极材料,可以制造具有高容量,优异的循环寿命特性的非水电解质二次电池。
摘要:
An object of the present invention is to provide a collet chuck in which a chuck section of a collet is so formed as to provide a greater chucking force when the collet chuck is turned. To accomplish this object, a collet chuck is provided in which a collet mounted on the axis of rotation of a rotating element which rotates in one direction, and having a chuck section which is guided for closing by a guide section of a retainer which is interposed between the rotating element and the collet and moves on the axis of rotation, is adapted to hold a member to be chucked by inserting into an insertion hole of the collet, and the chuck section of the collet is formed in a spiral configuration having a plurality of slits cut from one end of the retainer side and in the opposite direction of rotation along the direction of the axis of rotation.
摘要:
A ring member which is adapted to be disposed in an opening of a rotary member for coaxially mounting said rotary member to a shaft member which comprises a substantially convex ring body containing a centrally disposed hole, said ring body containing a plurality of outet slits which extend radially inwardly from the outer peripheral edge of the ring body toward the centrally disposed hole, a plurality of inner slits which radially extend outwardly from the edge defining the centrally disposed hole toward the outer peripheral edge of the ring body, and a plurality of through holes disposed in said ring body, said through holes being adapted to receive connecting rods for mounting the rotary member to said shaft member.
摘要:
A negative electrode material for non-aqueous electrolyte secondary batteries, characterized in that the negative electrode material comprises a composite particle including solid phases A and B, the solid phase A being dispersed in the solid phase B, and the ratio (IA/IB) of the maximum diffracted X-ray intensity (IA) attributed to the solid phase A to the maximum diffracted X-ray intensity (IB) attributed to the solid phase B satisfies 0.001≦IA/IB≦0.1, in terms of a diffraction line obtained by a wide-angle X-ray diffraction measurement of the composite particle.
摘要翻译:一种非水电解质二次电池用负极材料,其特征在于,所述负极材料包括固相A和B的复合粒子,所述固相A分散在固相B中,所述比例(IA / IB) 归因于固相B的固相A的最大衍射X射线强度(IA)与归于固相B的最大衍射X射线强度(IB)的折射率相对于衍射线满足0.001≤n1E; IA / IB&N1; 0.1 通过复合粒子的广角X射线衍射测定得到。
摘要:
A negative active material thin film containing silicon as a main component is formed on a collector. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon is varied smoothly, is formed in the vicinity of the interface between the collector and the negative active material thin film. The composition gradient layer contains at least one kind of third element selected from W, Mo, Cr, Co, Fe, Mn, Ni, and P, in addition to the elements contained in the collector and the elements contained in the negative active material thin film. The third element irregularizes the atomic arrangement at the interface between the collector and the negative active material thin film. Therefore, even when the negative active material absorbs/desorbs ions during charging/discharging, thereby allowing silicon particles in the negative active material to expand/contract, the strain at the interface involved in the expansion/contraction of the silicon particles is alleviated, and peeling at the interface between the negative active material thin film and the collector is suppressed. Consequently, cycle characteristics are enhanced.
摘要:
A negative active material thin film containing silicon as a main component is formed on a collector. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon is varied smoothly, is formed in the vicinity of the interface between the collector and the negative active material thin film. The composition gradient layer contains at least one kind of third element selected from W, Mo, Cr, Co, Fe, Mn, Ni, and P, in addition to the elements contained in the collector and the elements contained in the negative active material thin film. The third element irregularizes the atomic arrangement at the interface between the collector and the negative active material thin film. Therefore, even when the negative active material absorbs/desorbs ions during charging/discharging, thereby allowing silicon particles in the negative active material to expand/contract, the strain at the interface involved in the expansion/contraction of the silicon particles is alleviated, and peeling at the interface between the negative active material thin film and the collector is suppressed. Consequently, cycle characteristics are enhanced.
摘要:
In cycles of charging and discharging, an excellent capacity maintenance rate is obtained. The charging and discharging cycle characteristic of battery is enhanced. Further, an excellent initial discharging capacity is obtained. A negative electrode, a positive electrode, and a non-aqueous electrolyte are contained. The negative electrode includes an alloy of Si, a first element and a second element. The first element includes at least one element selected from the group consisting of the second group element except Mg in the periodic table, transition elements, twelfth group element, thirteenth group element except B, and fourteenth group element except Si. The second element includes at least one element of B and Mg.
摘要:
A surgical needle extractor is provided which has a chuck including a penetration portion for penetrating between the claws of a surgical needle. The chuck also has an actuated piece pivotable with respect to the penetration portion of the chuck. The extractor includes a handle to which the chuck is releasably attached. The handle includes pivoting means for pivoting the actuated piece with respect to the penetration portion such that when the penetration portion is inserted between the needle claws, the penetration portion and the actuated piece cooperate to remove the needle. Only the chuck touches the patient's skin, and only the handle is touched by the operator. Accordingly, the handle need not be sterilized each time before use and the chuck is disposable. The actuating rod of the handle is adapted to be hand-operated. The extractor can further include means for releasing the chuck from the handle when a new chuck is desired to be attached to the handle. Both the chuck and the handle can be formed as unitary members.
摘要:
A removal and installation device for external and internal snap rings that can switch between shaft and hole modes by simple operation and produces better controllability, workability, serviceability and easiness in handling is provided. A rotary plate is rotated in a positive direction, a left side lever is turned as a shaft part is rotated integrally with the rotary plate, right and left side levers are crossed substantially in an X shape, the crossed parts supported by the shaft part, realizing the hole mode. The rotary plate is rotated in reverse direction, the left side lever is turned in a reverse direction as the shaft part is rotated in a reverse direction integrally with the rotary plate, both pivot parts of the right and left side levers arranged substantially in a V shape supported by the shaft part so that both projected working tools are parallel, realizing the shaft mode.
摘要:
A negative active material thin film provided on a collector layer directly or via an underlying layer has a multi-layered configuration including at least two silicon thin films containing silicon as a main component. Because of this, even when the thickness of the negative active material thin film is increased, the increase in thickness of one silicon thin film can be prevented by increasing the number of silicon thin films. Thus, the diameter of silicon particles substantially in an inverse truncated cone shape is not enlarged in the silicon thin film. Accordingly, in an energy device having a thin film mainly containing silicon as a negative active material, even when the thickness of the negative active material layer is increased to obtain a larger capacity, cycle characteristics are not degraded.