Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Secondary cell










Image Number 7 for United States Patent #7273678.

A secondary cell comprises an electrode unit housed in a cell can comprising a cylinder having a bottom and a closed opening, and a current collector plate 50 is provided at one end of the electrode unit. The current collector plate 50 has a plurality of protrusions 52 extending radially thereof and joined to an edge of the electrode unit. The surface of the current collector plate 50 to be joined to the bottom wall of the cylinder has a flat region R extending on a predetermined closed-loop track on the surface, and the portions of the current collector plate 50 and the cylinder to be joined are subjected along the flat region R to laser welding from outside the cylinder.








 
 
  Recently Added Patents
Electronic component mounting machine and operating instruction method for the same
Method and system for routing telephony communications together with modified calling party identifier information
Pose-variant face recognition using multiscale local descriptors
Lookup front end packet input processor
Optical interconnect in high-speed memory systems
Managing deduplication density
Method and apparatus for over-the-air activation of neighborhood cordless-type services
  Randomly Featured Patents
Uniform small cell foams and a continuous process for making same
Laminating apparatus and method
Method and apparatus for data redundancy elimination at the block level
Process and arrangement for confocal microscopy
Broadcast receiving terminal
Door lifter
Data processing modules and systems
System and method for annotating web-based documents
Method for forming holographic optical elements free of secondary fringes
HTML integration utility for a program development environment