| US 7,589,501 B2 | ||
| Apparatus and method for protecting secondary battery | ||
| Sung Kyun Chang, Daejeon (Korea, Republic of); Jae Hyun Lee, Daejeon (Korea, Republic of); Joon Hwan Lee, Daejeon (Korea, Republic of); Soo Hyun Ha, Busan (Korea, Republic of); Sang Hoon Choy, Daejeon (Korea, Republic of); and Jeong Ju Cho, Daejeon (Korea, Republic of) | ||
| Assigned to LG Chem, Ltd., (Korea, Republic of) | ||
| Filed on Feb. 24, 2006, as Appl. No. 11/361,819. | ||
| Claims priority of application No. 10-2005-0016100 (KR), filed on Feb. 25, 2005; and application No. 10-2005-0065614 (KR), filed on Jul. 20, 2005. | ||
| Prior Publication US 2006/0197506 A1, Sep. 07, 2006 | ||
| Int. Cl. H01M 10/46 (2006.01) | ||
| U.S. Cl. 320—134 | 9 Claims |
| 1. An apparatus for protecting a secondary battery, the apparatus comprising:
a secondary battery;
a power supply, connected to electrode terminals of the secondary battery for providing a charging voltage and a charging
current to the secondary battery to charge the secondary battery; and
a secondary battery protection unit connected to electrode terminals of the power supply,
wherein the secondary battery protection unit shorts the electrode terminals of the power supply to stop charging the secondary
battery if the charging voltage of the secondary battery is above a predetermined voltage.
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