Battery can having off-center C-shaped vent

Battery can having off-center C-shaped vent

  • CN 101,563,798 A
  • Filed: 05/23/2007
  • Published: 10/21/2009
  • Est. Priority Date: 05/24/2006
  • Status: Active Application
First Claim
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1. , a kind of electrochemical cell comprises:

  • A container has first end and second end, and the sidewall that extends between first and second ends extends across the end metallic walls of first end;

    Place the positive electrode of described container;

    Place the negative electrode of described container;

    Place the alkaline aqueous electrolyte of described container;

    WithBe formed on the groove vent mechanism on the described container end portion metallic walls, when internal pressure is excessive, in discharging, described internal tank presses, wherein said groove vent mechanism comprises and forms the thick groove of subtracting of C shape, subtract thick groove and have first end and second end, and first and second the sweep between the end, wherein said groove departs from the center of end metallic walls, so that the C shape between the end subtracts the bend respective spaced apart end portions metallic walls center in thick groove centre position is nearer than the first and second end distance decentres.

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