公开(公告)号：KR1020040054079A

公开(公告)日：2004-06-25

申请号：KR1020020080726

申请日：2002-12-17

Applicant: 제일모직주식회사

Inventor： 박명국 ,  전종호 ,  강윤정 ,  김학수 ,  김종섭 ,  양호석

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

Abstract: PURPOSE: A nonaqueous electrolyte solution for a lithium battery is provided, to suppress effectively a high temperature swelling property without deterioration of the properties of a battery. CONSTITUTION: The nonaqueous electrolyte solution comprises 100 parts by weight of an organic solvent mixture which comprises a cyclic carbonate-based organic solvent and a linear carbonate-based organic solvent and contains 0.8-2.0 M lithium salt; and 0.1-10.0 parts by weight of a 2,3-benzofuran or thionaphthene derivative represented by the formula 1, wherein X is O or S; and Y and Z are independently H, a halogen atom, an alkyl, allyl or alkenyl group of C1-C12, or a low molecular weight fluorinated alkyl group. Preferably the lithium salt is at least one selected from the group consisting of LiPF6, LiClO4, LiAsF6, LiBF4 and LiN(C2F5SO3)2; the cyclic carbonate-based organic solvent is at least one selected from the group consisting of ethylene carbonate and propylene carbonate; and the linear carbonate-based organic solvent is at least one selected from the group consisting of dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, methyl propyl carbonate and ethyl propyl carbonate.

Abstract translation: 目的：提供一种用于锂电池的非水电解质溶液，以有效地抑制高温溶胀性而不劣化电池的性能。 构成：非水电解质溶液包含100重量份的包含环状碳酸酯基有机溶剂和直链碳酸酯类有机溶剂并含有0.8-2.0M锂盐的有机溶剂混合物; 和0.1-10.0重量份由式1表示的2,3-苯并呋喃或硫代萘衍生物，其中X是O或S; Y和Z独立地为H，卤素原子，C1-C12的烷基，烯丙基或烯基或低分子量氟化烷基。 优选锂盐为选自LiPF 6，LiClO 4，LiAsF 6，LiBF 4和LiN（C 2 F 5 SO 3）2中的至少一种; 环状碳酸酯类有机溶剂为选自碳酸亚乙酯和碳酸亚丙酯中的至少一种; 直链碳酸酯系有机溶剂为选自碳酸二甲酯，碳酸二乙酯，碳酸甲乙酯，碳酸甲丙酯，碳酸丙基酯中的至少一种。

公开(公告)号：KR100511519B1

公开(公告)日：2005-08-31

申请号：KR1020020087838

申请日：2002-12-31

Applicant: 제일모직주식회사

Inventor： 박명국 ,  전종호 ,  강윤정 ,  김학수 ,  김종섭 ,  양호석

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0569

Abstract: 본 발명은 리튬염이 용해된 탄산염계 유기혼합 용매(리튬염 함유 유기혼합용액)에 노블락 페놀(Novolak phenol) 또는 멀티페놀 유도체를 포함하는 리튬전지용 비수전해액 및, 이를 포함한 리튬 2차전지에 관한 것이다
본 발명에 따른 리튬 전지용 비수 전해액은 통상의 전해액에 비해 고온 (85℃)에서의 기체발생이 현저히 적어, 이를 전지에 적용할 경우, 고온하에서의 전해액의 분해에 따른 전지 내부의 기체 발생에 의한 전지 두께가 팽창, 이른바 부풀림 현상이 방지되고 고온에서의 용량 저장특성이 우수하다.

公开(公告)号：KR100510865B1

公开(公告)日：2005-08-26

申请号：KR1020020080726

申请日：2002-12-17

Applicant: 제일모직주식회사

Inventor： 박명국 ,  전종호 ,  강윤정 ,  김학수 ,  김종섭 ,  양호석

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

Abstract: 본 발명은 0.8 내지 2.0M의 리튬염을 포함하는 환형 탄산염계 유기용매와 선형 탄산염계 유기용매의 혼합 유기용매 100 중량부에 2,3-벤조퓨란 유도체 또는 티오나프텐 유도체를 0.1 내지 10.0 중량부의 비율로 첨가하여 제조된 리튬전지용 비수전해액에 관한 것으로, 본 발명의 비수전해액은 전지특성의 저하 없이 고온 부풀림 현상을 효과적으로 억제하므로, 본 발명에 의해 리튬전지의 고온성능 향상 및 세트장착 효율의 증가를 실현할 수 있다.

公开(公告)号：KR1020040061566A

公开(公告)日：2004-07-07

申请号：KR1020020087838

申请日：2002-12-31

Applicant: 제일모직주식회사

Inventor： 박명국 ,  전종호 ,  강윤정 ,  김학수 ,  김종섭 ,  양호석

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0569

Abstract: PURPOSE: A nonaqueous electrolyte solution and a secondary battery containing the electrolyte solution are provided, to reduce the generation of gas at a high temperature (85 deg.C) remarkably by using a novolac phenol or multiphenol derivative, thereby preventing the swelling due to the generation of gas of a battery and improving the capacity storage at a high temperature. CONSTITUTION: The nonaqueous electrolyte solution comprises a carbonate-based organic solvent mixture where a lithium salt is dissolved; and 0.1-10 parts by weight of a novolac phenol or multiphenol derivative represented by the formula 1, wherein n is an integer of 0-100,000; and X and Y are H, a halogen atom, an alkyl group of C1-C12, an aryl group of C1-C12, an alkenyl group of C1-C12 or a fluorinated low molecular weight alkyl group or phenyl group. Preferably the lithium salt is at least one selected from the group consisting of LiPF6, LiClO4, LiAsF6, LiBF4 and LiN(C2F5SO3)2; and the carbonate-based organic solvent mixture is a mixture of linear and cyclic carbonate-based organic solvents, the cyclic carbonate-based organic solvent is ethylene carbonate, propylene carbonate or their mixture, and the linear carbonate-based organic solvent is carbonate dimethyl, carbonate diethyl, carbonate ethylmethyl, carbonate methylpropyl or their mixtures.

Abstract translation: 目的：提供非水电解液和含有电解质溶液的二次电池，通过使用酚醛清漆酚或多酚衍生物显着降低高温（85℃）下的气体的产生，防止由于 生成电池的气体并提高高温下的容量储存。 构成：非水电解液含有溶解锂盐的碳酸酯系有机溶剂混合物， 和0.1-10重量份由式1表示的酚醛清漆酚或多酚衍生物，其中n为0-100,000的整数; X和Y是H，卤素原子，C 1 -C 12烷基，C 1 -C 12的芳基，C 1 -C 12的烯基或氟化低分子量烷基或苯基。 优选锂盐为选自LiPF 6，LiClO 4，LiAsF 6，LiBF 4和LiN（C 2 F 5 SO 3）2中的至少一种; 碳酸酯系有机溶剂混合物为直链状和环状碳酸酯类有机溶剂的混合物，环状碳酸酯类有机溶剂为碳酸亚乙酯，碳酸丙烯酯或它们的混合物，直链状碳酸酯类有机溶剂为碳酸二甲酯， 碳酸二乙酯，碳酸乙酯，碳酸甲酯或它们的混合物。