摘要:
A prismatic secondary battery includes an electrode assembly having a cathode, an anode, and a separator mounted in a prismatic battery case in a sealed state, the battery case including a hexahedral case body open at the top thereof, the hexahedral case body being made of a metal material, and a case cap coupled to the open top of the case body, the case cap having an electrode terminal, wherein the case body is provided at a region exhibiting a stress distribution equivalent to 40% or less of the maximum stress of the case in a high pressure state with a line-shaped safety groove configured to be ruptured when high pressure occurs in the battery, and the safety groove is configured such that a residual thickness of the case body is decreased toward the middle from opposite ends of the safety groove in the longitudinal direction.
摘要:
Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28.
摘要:
Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28.
摘要:
A computer program product that includes a computer useable storage medium to store a computer readable program that, when executed on a computer, causes the computer to perform operations, including operations to receive a query for which a query execution plan (QEP) is to be computed, divide a search space into a plurality of subproblems for which constituent QEPs are to be created, partition the plurality of subproblems into a plurality of partitions, and allocate each of the plurality of partitions to a thread of a plurality of threads within a multiple thread architecture. Possible QEPs describe a search space. Each subproblem references one or more quantifiers and each of the subproblems within a partition references the same number of quantifiers. A partition containing subproblems referencing fewer quantifiers is executed before a partition containing subproblems referencing more quantifiers.
摘要:
A computer program product that includes a computer useable storage medium to store a computer readable program that, when executed on a computer, causes the computer to perform operations, including operations to receive a query for which a query execution plan (QEP) is to be computed, divide a search space into a plurality of subproblems for which constituent QEPs are to be created, partition the plurality of subproblems into a plurality of partitions, and allocate each of the plurality of partitions to a thread of a plurality of threads within a multiple thread architecture. Possible QEPs describe a search space. Each subproblem references one or more quantifiers and each of the subproblems within a partition references the same number of quantifiers. A partition containing subproblems referencing fewer quantifiers is executed before a partition containing subproblems referencing more quantifiers.
摘要:
Disclosed is a hydraulic control system including a hydraulic fluid source; line pressure control means for regulating hydraulic pressure supplied from the fluid source to line pressure; reducing pressure controller for reducing hydraulic pressure from the line pressure control means; range controller for selectively supplying hydraulic pressure from the line pressure controller; shift controller for supplying hydraulic pressure; hydraulic pressure controller for converting hydraulic pressure to operational pressure; and hydraulic pressure distributer for determining a hydraulic flow path according to the hydraulic pressure from the shift controller; wherein the hydraulic pressure distributer includes an end clutch valve supplying operational pressure to an end clutch; a low-reverse brake valve supplying operational pressure to a low-reverse brake; a first rear clutch valve supplying operational pressure to a rear clutch; a second rear clutch valve supplying hydraulic pressure to the first rear clutch valve; a 1-2 shift valve supplying hydraulic pressure to friction elements operating when 1-2 shifting; and a 2-3/4-3 shift valve supplying hydraulic pressure to friction elements operating when 2-3 and 4-3 shifting.
摘要:
Disclosed is a hydraulic control system for an automatic transmission which includes a line pressure controller for regulating hydraulic pressure generated by a hydraulic pump to line pressure, a damper clutch controller for actuating a damper clutch of the torque converter, a reducing pressure controller for reducing line pressure, a range controller for selectively supplying line pressure to lines corresponding to respective shift ranges, a shift controller for supplying hydraulic pressure from the range controller to lines corresponding to respective shift ranges, a hydraulic pressure controller for converting hydraulic pressure from the range controller to operational pressure operating the friction element, and a hydraulic pressure distributor for determining a hydraulic flow path corresponding to each shift range by operating valves according to the hydraulic pressure from the shift controller, and suitably distributing the operational pressure to each friction element, wherein the shift controller further includes an additional shift control valve easily controlling timing of pressure supply and reducing a change in hydraulic pressure levels.