公开(公告)号：KR1020050062211A

公开(公告)日：2005-06-23

申请号：KR1020030094217

申请日：2003-12-20

Applicant: 제일모직주식회사

Inventor： 김학수 ,  전종호 ,  박명국 ,  김종섭

IPC: H01M10/05

CPC classification number: H01M10/0525 ,  H01M4/133 ,  H01M10/0567

Abstract: 본 발명은 리튬 전지용 비수 전해액에 관한 것으로, 보다 상세하게는 리튬염이 0.8 내지 2.0M로 용해된 유기용매 100 중량부에 하기 화학식 1로 표시되는 화합물을 0.1 내지 10 중량부 첨가하여 제조된 리튬 전지용 비수 전해액에 관한 것이며, 본 발명의 리튬 전지용 비수 전해액을 사용하면 전지 본래의 특성에 영향을 주지 않고 고온에서의 두께 팽창이 감소되며, 충방전 사이클 특성이 우수한 리튬 전지를 제조할 수 있다.
[화학식 1]

상기식에서 R
1 및 R
2 는 동시에 ClCOO-, CH
3 COO- 또는 CH
2 CCH
3 COO- 이다.

公开(公告)号：KR1020040086920A

公开(公告)日：2004-10-13

申请号：KR1020030021110

申请日：2003-04-03

Applicant: 삼성에스디아이 주식회사 ,  제일모직주식회사

Inventor： 김진희 ,  김진성 ,  황상문 ,  백민선 ,  김학수

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2300/0037

Abstract: PURPOSE: Provided is a non-aqueous electrolyte for a lithium secondary battery, which contains an organic compound capable of inhibiting generation of gases inside of the battery, thereby preventing the change in thickness of the battery under high-temperature storage conditions. CONSTITUTION: The electrolyte for a lithium secondary battery comprises a lithium salt, a non-aqueous organic solvent, and an additive which initiates decomposition at 4V to 5V and has a constant current zone having the range of 0.5V or more, when measured by LSV(Linear Sweep Voltammetry). Particularly, the additive is at least one selected from the group consisting of bisphenol A, 2,5-dimethylfuran and 2,3-dichloro-1,4-naphthoquinone.

Abstract translation: 目的：提供一种锂二次电池用非水电解质，其含有能够抑制电池内产生气体的有机化合物，从而防止电池在高温保存条件下的厚度变化。 构成：用于锂二次电池的电解质包括锂盐，非水有机溶剂和在4V至5V时分解的添加剂，并且当通过LSV测量时具有0.5V以上的范围的恒定电流区 （线性扫描伏安法）。 特别地，添加剂是选自双酚A，2,5-二甲基呋喃和2,3-二氯-1,4-萘醌中的至少一种。

公开(公告)号：KR1020040054078A

公开(公告)日：2004-06-25

申请号：KR1020020080725

申请日：2002-12-17

Applicant: 제일모직주식회사

Inventor： 박명국 ,  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, thereby improving the high performance of a lithium battery and a set mounting efficiency. 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 dibenzofuran or dibenzothiophene 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，以有效地抑制高温膨胀性，而不会劣化电池的性能，从而提高锂电池的高性能和设定的安装效率。 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表示的二苯并呋喃或二苯并噻吩衍生物，其中X为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：KR100412522B1

公开(公告)日：2003-12-31

申请号：KR1020010025763

申请日：2001-05-11

Applicant: 제일모직주식회사 ,  삼성에스디아이 주식회사

Inventor： 김진성 ,  백민선 ,  박정준 ,  김영규 ,  김종섭 ,  김학수 ,  이상준 ,  나재호

IPC: H01M10/05

CPC classification number: H01M10/052 ,  H01M10/0567

Abstract: 본 발명의 비수성 전해액은 리튬염; 비수성 유기 용매; 및 하기 화학식 1 내지 3으로 이루어진 군에서 선택되는 하나 이상의 유기 화합물을 포함한다:
[화학식 1]

[화학식 2]

[화학식 3]

상기 식에서 R
7 내지 R
9 는 각각 독립적으로 1차, 2차 또는 3차 알킬기, 알케닐기 또는 아릴기이고, X는 수소 또는 할로겐 원자이고, n과 m은 각각 0∼3이다.

Abstract translation: 目的：提供一种能够改善电化学性能的非水电解质和一种电化学性能优异的锂二次电池。 构成：电解质包含锂盐; 一种非水有机溶剂; 和至少一种选自式1至4的化合物（其中式3为R 9 -SO 3 -Si-（C m H 2m + 1）3且式4为C n X 2n + 1 -SO 3 -Si（C m H 2m + 1）3 ）。 式中，R 1至R 9各自独立地表示伯，仲或叔烷基，烯基或芳基，X为氢或卤素原子，并且n和m各自为0-3。 锂盐选自六氟磷酸锂（LiPF 6），四氟硼酸锂（LiBF 4），高氯酸锂（LiClO 4），三氟甲磺酸锂（LiCF 3 SO 3），六氟砷酸锂（LiAsF 6）及其混合物。

公开(公告)号：KR1020020042224A

公开(公告)日：2002-06-05

申请号：KR1020000072029

申请日：2000-11-30

Applicant: 제일모직주식회사

Inventor： 김학수 ,  김종섭 ,  김영규 ,  김제윤

IPC: H01M10/05

CPC classification number: H01M10/052 ,  H01M4/133 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

Abstract: PURPOSE: Provided is a non-aqueous electrolyte for a lithium battery, which can prevent the battery from swelling, therefore, can improve a set mounting rate remarkably when preparing the lithium battery. CONSTITUTION: The non-aqueous electrolyte is produced by adding 0.1-10.0pts.wt. of a sulfoxide compound represented by the formula 1 to 100pts.wt. of a mixed organic solvent in which 0.8-2.0M of lithium salts are dissolved, wherein the mixed organic solvent comprises a cyclic carbonate-based organic solvent selected from ethylene carbonate, propylene carbonate, or a mixture thereof and a linear carbonate-based organic solvent selected from dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate, methylpropyl carbonate, ethylpropyl carbonate, or a mixture thereof. And the sulfoxide compound is perfluoro butane sulfonyl fluoride or perfluoro octane sulfonyl fluoride. In the formula, R is C1-C10 perfluoroalkyl and R' is C1-C10 fluoroalkyl or fluoro.

Abstract translation: 目的：提供一种用于锂电池的非水电解质，其可以防止电池膨胀，因此在制备锂电池时可以显着提高设定的安装率。 构成：非水电解质是通过加入0.1-10.0pts.wt。 的由式1至100pts.wt。表示的亚砜化合物。 的混合有机溶剂，其中溶解有0.8-2.0M的锂盐，其中所述混合有机溶剂包括选自碳酸亚乙酯，碳酸亚丙酯或其混合物的环状碳酸酯类有机溶剂和直链碳酸酯类有机溶剂 选自碳酸二甲酯，碳酸二乙酯，碳酸甲乙酯，碳酸甲丙酯，碳酸乙丙酯或它们的混合物。 亚砜化合物是全氟丁烷磺酰氟或全氟辛烷磺酰氟。 式中，R为C1-C10全氟烷基，R'为C1-C10氟烷基或氟。

公开(公告)号：KR1020020041645A

公开(公告)日：2002-06-03

申请号：KR1020000071316

申请日：2000-11-28

Applicant: 제일모직주식회사

Inventor： 김영규 ,  김종섭 ,  김학수 ,  김진성 ,  황상문 ,  나재호

IPC: H01M10/05

CPC classification number: H01M10/052 ,  H01M4/133 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

Abstract: PURPOSE: Provided is a non-aqueous electrolyte for a lithium battery, which can improve a set mounting rate when preparing the lithium battery and can also improve capacity storage property of the battery at a high temperature. CONSTITUTION: The non-aqueous electrolyte is produced by adding 0.1-10.0pts.wt. of 3,6-dimethyl-1,4-dioxane-2,5-dione(formula I) to 100pts.wt. of a mixed organic solvent, in which 0.8-2.0M of lithium salts are dissolved, comprising a cyclic carbonate-based organic solvent and a linear carbonate-based organic solvent, wherein the cyclic carbonate-based organic solvent is ethylene carbonate, propylene carbonate, or a mixture thereof and the linear carbonate-based organic solvent is dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate, methylpropyl carbonate, ethylpropyl carbonate, or a mixture thereof.

Abstract translation: 目的：提供一种用于锂电池的非水电解质，其可以在制备锂电池时提高设定的安装速度，并且还可以在高温下提高电池的容量储存性。 构成：非水电解质是通过加入0.1-10.0pts.wt。 的3,6-二甲基-1,4-二恶烷-2,5-二酮（式I）至100pts.wt。 的混合有机溶剂，其中溶解有0.8-2.0M的锂盐，其包含环状碳酸酯类有机溶剂和直链碳酸酯类有机溶剂，其中环状碳酸酯类有机溶剂为碳酸亚乙酯，碳酸亚丙酯， 或其混合物，直链碳酸酯类有机溶剂为碳酸二甲酯，碳酸二乙酯，碳酸甲乙酯，碳酸甲丙酯，碳酸乙丙酯或它们的混合物。

公开(公告)号：KR1020020041644A

公开(公告)日：2002-06-03

申请号：KR1020000071315

申请日：2000-11-28

Applicant: 제일모직주식회사

Inventor： 김영규 ,  김종섭 ,  김학수 ,  김진성 ,  이상준 ,  박정준

IPC: H01M10/05

CPC classification number: H01M10/0567 ,  H01M4/133 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569

Abstract: PURPOSE: Provided is a non-aqueous electrolyte for a lithium battery, which can reduce the internal resistance of the battery, therefore, can prepare the lithium battery excellent in high ratio discharge property at a low temperature. CONSTITUTION: The non-aqueous electrolyte is produced by adding 0.1-10.0pts.wt. of an allyl sulfide(CH2=CHCH2-S-CH2CH=CH2) to 100pts.wt. of a mixed organic solvent in which 0.8-2.0M of lithium salts are dissolved, wherein the mixed organic solvent comprises a cyclic carbonate-based organic solvent selected from ethylene carbonate, propylene carbonate, or a mixture thereof, a linear carbonate-based organic solvent selected from dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate, methylpropyl carbonate, ethylpropyl carbonate, or a mixture thereof, and additionally at least one selected from the group consisting of propyl acetate, methyl acetate, butyl acetate, ethyl acetate, methyl propionate, and ethyl propionate.

Abstract translation: 目的：提供一种用于锂电池的非水电解质，其可以降低电池的内部电阻，因此可以制备在低温下具有优异的高比率放电性能的锂电池。 构成：非水电解质是通过加入0.1-10.0pts.wt。 的烯丙基硫醚（CH 2 = CHCH 2 -S-CH 2 CH = CH 2）至100pts.wt。 的混合有机溶剂，其中溶解有0.8-2.0M的锂盐，其中所述混合有机溶剂包含选自碳酸亚乙酯，碳酸亚丙酯或其混合物的环状碳酸酯类有机溶剂，直链碳酸酯类有机溶剂 选自碳酸二甲酯，碳酸二乙酯，碳酸甲乙酯，碳酸甲丙酯，碳酸乙基丙酯或其混合物，另外选自乙酸丙酯，乙酸甲酯，乙酸丁酯，乙酸乙酯，丙酸甲酯和乙酸乙酯中的至少一种 丙酸盐。