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US 9,178,252 B2Granted
Structure for electrochemical device to improve safety and electrochemical device comprising the same
AssigneeLG Chem, Ltd.
InventorsYoung-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
Life of this patent
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Abstract
Disclosed is a sealed structure for an electrochemical device having a hollow space therein, further comprising a material generating gases via thermal decomposition in the hollow space. Also, disclosed is an electrochemical device comprising a cathode, an anode, a separator, an electrolyte, a casing for the device, and the structure for the electrochemical device.
Claims10
A structure suitable for use in an electrochemical device comprising:
- a tube having two or more hollow cylindrical tubes formed of a polymer or a metal connected to each other longitudinally by way of a polymer;
- a third member formed of a polymer or a metal for sealing one end of the tube;
- and
- a fourth member formed of a polymer or a metal for sealing the other end of the tube,
- the structure further comprising a material generating inert gases via thermal decomposition in a hollow space thereof,
- wherein the polymer or the metal of the two or more hollow cylindrical tubes has a higher melting point than the melting point of the polymer or the metal of the third member and the polymer or the metal of the fourth member.
3 more elements
An electrochemical device comprising a cathode, an anode, a separator, an electrolyte, a casing for the device, and
- a structure for an electrochemical device comprising a tube having two or more hollow cylindrical tubes formed of a polymer or a metal connected to each other longitudinally by way of a polymer;
- a third member formed of a polymer or a metal for sealing one end of the tube;
- and a fourth member formed of a polymer or a metal for sealing the other end of the tube, the structure further comprising a material generating inert gases via thermal decomposition in a hollow space thereof, wherein the polymer or the metal of the two or more hollow cylindrical tubes has a higher melting point than the melting point of the polymer or the metal of the third member and the polymer or the metal of the fourth member.
Dependencies are inferred from the claim text.