Polymer-electrolyte lithium secondary battery
AssigneeSanyo Electric Co., Ltd.
InventorsNoriyuki Tamura, Maruo Kamino, Shin Fujitani
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Abstract
The present invention provides a lithium polymer secondary battery having at least a basic battery cell including a positive electrode, a negative electrode and a polymer electrolyte in an outer can, wherein the battery has a suitable structure to use the polymer electrolyte polymerized in the battery and has excellent cycle characteristics. One of the electrodes is U-shaped and the other electrode is inserted in the U-shaped electrode. The polymer electrolyte includes a polymer containing a polyalkylene oxide structure and a solvent and is polymerized in the battery. The thickness of the battery is not greater than 2 mm.
Claims25
A lithium polymer secondary battery comprising at least one basic battery cell housed in a can, said basic battery cell comprising a positive electrode, a negative electrode and a polymer electrolyte formed between said positive electrode and said negative electrode,
- wherein one of said positive or negative electrode is U-shaped, and other electrode is inserted in said U-shaped electrode,
- said polymer electrolyte contains a polymer having a polyalkyleneoxide structure and a solvent, and is formed by polymerization in said battery, and
- a thickness of said battery is not greater than 2 mm.
Dependencies are inferred from the claim text.