Insulating case for secondary battery and secondary battery having the same
AssigneeSamsung SDI Co., Ltd.
InventorsChang-Bum Ahn, Chan-Hee Lee, Ha-Dong Kim, Yun-Kyung Ha
Life of this patent
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Abstract
An insulating case for a secondary battery and a secondary battery having the same, the insulating case having opposing first and second portions. The first portion faces an electrode assembly of the secondary battery and has a first melting point. The second portion faces a cap assembly of the secondary battery and has a second melting point that is higher than the first melting point. The first melting point is approximately the contraction temperature of a separator of the electrode assembly.
Claims27
An insulating case for a secondary battery that includes an electrode assembly, a can to house the electrode assembly, and a cap assembly to seal an opening of the can, the insulating case comprising:
- a first portion that faces the electrode assembly and has a first melting point;
- and
- a second portion that faces the cap assembly and has a second melting point that is higher the first melting point.
A secondary battery comprising:
- an electrode assembly comprising a first electrode plate, a second electrode plate, and a separator interposed between the first electrode plate and the second electrode plate, the separator having a contraction temperature;
- a can to house the electrode assembly;
- a cap assembly to seal an opening of the can;
- and
- an insulating case disposed between the electrode assembly and the cap assembly, comprising a first portion that faces the electrode assembly and a second portion that faces the cap assembly,
- wherein the first portion has a first melting point that is from about 90% to 110% of the contraction temperature.
A secondary battery comprising:
- an electrode assembly comprising a first electrode plate, a second electrode plate, and a separator interposed between the first electrode plate and the second electrode plate, the separator having a contraction temperature;
- a can to house the electrode assembly;
- a cap assembly to seal an opening of the can;
- and
- an insulating case disposed between the electrode assembly and the cap assembly, comprising a first portion that faces the electrode assembly and has a first melting point, and a second portion that faces the cap assembly and has a second melting point that is lower than the first melting point.
Dependencies are inferred from the claim text.