Patent ID: 7807283

Claim:
A nonaqueous electrolyte secondary battery, comprising: a positive electrode including a positive electrode active material layer absorbing-releasing Li element or Li ions; a negative electrode including a negative electrode current collector formed of aluminum or an aluminum alloy and a negative electrode active material layer formed on a first region of the negative electrode current collector, and the negative electrode active material layer containing a negative electrode active material having a Li absorption-release potential nobler by at least 0.4V than a lithium electrode potential; a negative electrode terminal electrically connected to a part of a second region of the negative electrode current collector, the negative electrode active material layer is not formed in the second region; a separator provided between the positive electrode and the negative electrode; a current stopping section formed in another part of the second region of the negative electrode current collector, the current stopping section being positioned between the negative electrode terminal and the negative electrode active material layer and facing the positive electrode active material layer via the separator; and a current stopping mechanism which imparts a tensile stress or a shearing stress to the current stopping section.