Patent application number | Description | Published |
20090068549 | Nickel-metal hydride secondary battery module and secondary battery module manufacturing method - A nickel-metal hydride secondary battery includes: a plurality of power generating elements each having a negative plate containing hydrogen absorbing alloy; a battery case provided with partition walls and a plurality of compartments arranged adjacently on both sides of each partition wall, each of the compartments accommodating each power generating element, and the compartments allowing gas intercommunication between compartments through communication holes formed in the partition walls; and at least one of safety valves placed on the battery case, the safety valves being less in number than the number of the compartments; wherein each of the communication holes has a hole sectional area per battery module capacity in a range 0.03 to 0.30 mm | 03-12-2009 |
20090155672 | Secondary battery - A secondary battery comprises a power generating element, a battery case including a gas release hole, and a valve safety device configured to close the gas release hole and release gas out of the battery case when inner pressure in the battery case exceeds a predetermined value. The safety valve device comprises a valve member and a holding member. The valve member includes a sealing portion hermetically making contact with a sealed surface around the gas release hole, and the holding member is fixed to the battery case to elastically press the sealing portion by its elastic deformation. | 06-18-2009 |
20100209769 | SEALED-TYPE SECONDARY BATTERY - A sealed-type secondary battery is disclosed. A battery module of a sealed-type secondary battery is formed by heating and fusing a top lid member and an integrated battery container. The integrated battery container is formed with a polymer alloy including a polyphenylene ether resin and a polyolefin resin, and the top lid member or a lateral lid member is formed with a polypropylene-based resin. A nucleating agent is added to the polypropylene-based resin of the top lid member or the lateral lid member, to improve mechanical strength, and the molecular weight is increased to reduce a melt flow rate MFR to approximately the same degree as the polymer alloy. | 08-19-2010 |
20120121948 | PRISMATIC SEALED RECHARGEABLE BATTERY, BATTERY MODULE, AND BATTERY PACK - A prismatic sealed rechargeable battery includes a substantially prismatic battery case that accommodates an electrode plate assembly and an electrolyte solution. The battery case is formed of metal. On a side face of the battery case, a thin plate is provided which has a plurality of protruding portions formed in parallel at appropriate intervals. The protruding portion and the side face form spaces opened at both ends therebetween. The thin plate is bonded to the side face of the battery case by making flat portions between the protruding portions into surface-contact with the side face, thereby improving cooling capability of the battery. | 05-17-2012 |
20140106187 | SEALED BATTERY AND SAFETY VALVE - A sealed battery includes a return type safety valve. An annular projection that projects toward a valve body from a valve port is formed on a valve seat for the safety valve. The projection includes a first projection region and a second projection region that are defined by a shape of a tip of the projection and arranged in parallel in a circumferential direction of the valve port. The first projection region and second projection region have different curvature radii in a cross-section of the projection taken along an axial direction of the valve body. The pressure per unit area applied to the second projection region by the valve body is higher than the pressure per unit area applied to the first projection region by the valve body. | 04-17-2014 |
Patent application number | Description | Published |
20090138757 | FAILURE RECOVERY METHOD IN CLUSTER SYSTEM - There is provided a method executed in a cluster system comprising a first computer and at least one second computer that stores the data transmitted from the first computer. The method comprising the steps of: judging whether the failure-occurred processing is restarted by the first computer or the failure-occurred processing is switched over by the second computer based on the system information; receiving the stored data from the second computer and re-executing the processing in which the failure has occurred by the first computer, in the case of which it is judged that the processing in which the failure has occurred is restarted by the first computer; and executing, by the second computer, the processing in which the failure has occurred, in the case of which it is judged that the processing in which the failure has occurred is switched over by the at least one second computer. | 05-28-2009 |
20090240974 | Data replication method - Provided is a data replication method capable of reducing the number of communication times when a processing result of an active system is replicated to a standby system. The data replication method, in which a first computer receives a first message containing a first processing request, and a plurality of second computers replicates the first message, includes the steps of: sending, by a third computer, the first message to the first computer and the second computers; sending, by each of the second computers, a message receive notification of the first message to the first computer; sending, by the first computer, after reception of the message receive notification from the second computers, the message receive notification of the first message to the third computer; and sending, by the first computer, a notification indicating that the first processing request becomes executable by the first computer to the second computers. | 09-24-2009 |