Cylindrical Secondary Battery Having Piezoelectric Element Disposed Therein
AssigneeLG Chem, Ltd.
InventorsMin Gi Jeong, Joo Hwan Sung, Han Sol Park, Min Su Cho
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Abstract
A cylindrical secondary battery includes a jelly-roll type electrode assembly having a structure in which a long sheet type positive electrode and a long sheet type negative electrode are wound with a separator interposed between the positive electrode and the negative electrode. The cylindrical secondary battery also includes a cylindrical battery case configured to receive the jelly-roll type electrode assembly, and a piezoelectric element configured to generate electrical energy due to the volumetric expansion of the jelly-roll type electrode assembly caused by charging and discharging the jelly-roll type electrode assembly.
Claims13
A cylindrical secondary battery comprising:
- a jelly-roll type electrode assembly having a structure in which a long sheet type positive electrode and a long sheet type negative electrode are wound with a separator interposed between the positive electrode and the negative electrode;
- a cylindrical battery case configured to receive the jelly-roll type electrode assembly;
- and
- a piezoelectric element configured to generate electrical energy due to a volumetric expansion of the jelly-roll type electrode assembly caused by charging and discharging the jelly-roll type electrode assembly.
Dependencies are inferred from the claim text.