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OwnerKenjin Masumoto, Shinji Murashige +6inventors
InventorsKenjin Masumoto, Shinji Murashige, Hajime Konishi, Kunio Tsuruta, Hiroshi Yoshizawa, Masaaki Kaneda, Koji Saito, Satoshi Kataoka
Estimating the term…
The open end of a battery case (1) that houses an electrode assembly (14) is sealed with a sealing plate (3), the top of the sealing plate (3) is closed off with an insulating plate (11), and inside a concave section formed in the sealing plate (3), a positive electrode lead (12) that extends from a positive electrode plate of the electrode assembly (14) is connected in series to a thermal fuse (8) and a PTC element (9) and then to a positive electrode terminal (+). A two fold safety function is provided so that in the case of an external short-circuit across the positive and negative electrodes, excessive current is regulated by a rapid increase in the resistance of the PTC element (9) accompanying the temperature increase, whereas if a temperature increase occurs that cannot be regulated in this manner, the thermal fuse (8) fuses, breaking the circuit.
A non-aqueous electrolyte rechargeable battery comprising a reversible current regulation element for regulating current at a predetermined operating temperature and a non-reversible current cutoff element for interrupting current at a predetermined operating temperature, which are disposed in series with a positive electrode connection line and/or a negative electrode connection line connecting a positive electrode or a negative electrode of an electrode assembly housed in said battery, and a positive electrode terminal or a negative electrode terminal exposed externally on said battery.
A non-aqueous electrolyte rechargeable battery, wherein a power generating element is housed in a battery case (1) formed in a shape of a cylinder with a closed bottom and having a rectangular cross-section, an open end of said battery case (1) is sealed by a sealing plate (3) with a concave section that protrudes into said case, a top of said sealing plate (3) is closed off with an insulating plate (11), a positive electrode terminal and a negative electrode terminal are exposed externally from said insulating plate (11), and a reversible current regulation element for regulating current at a predetermined operating temperature and a non-reversible current cutoff element for interrupting current at a predetermined operating temperature are disposed in series with a positive electrode connection line and/or a negative electrode connection line connecting said positive electrode terminal or said negative electrode terminal and a positive electrode or a negative electrode of an electrode assembly of said power generating element.
A non-aqueous electrolyte rechargeable battery, wherein a power generating element is housed in a battery case (101) formed in a shape of a cylinder with a closed bottom and having an elliptical cross-section, an open end of said battery case (101) is sealed by a sealing plate (103) with a concave section that protrudes into said case, a reversible current regulation element for regulating current at a predetermined operating temperature and a non-reversible current cutoff element for interrupting current at a predetermined operating temperature are connected to a positive electrode connection line and/or a negative electrode connection line that connect a positive electrode lead (112) and a negative electrode lead (113) extending from an electrode assembly (114) of said power generating element to a positive electrode terminal and a negative electrode terminal respectively, said reversible current regulation element and said non-reversible current cutoff element are disposed inside said concave section of said sealing plate (103), and conducting surfaces of structural elements disposed on top of said sealing plate (103) and connected to said positive electrode connection line and said negative electrode connection line are exposed externally as said positive electrode terminal and said negative electrode terminal respectively, through openings formed in an insulating plate that closes over said sealing plate (103).
Dependencies are inferred from the claim text.