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Patent Agency Ranking
公开(公告)号：KR100726889B1
公开(公告)日：2007-06-14
申请号：KR1020050066929
申请日：2005-07-22
Applicant: 한국과학기술원
IPC: H01M10/05
Abstract: 본 발명은 리튬이차전지용 비수전해액의 첨가제로 사용 가능한 새로운 부동태피막 안정화제 물질에 관한 것으로, 보다 상세하게는 비닐실레인계 물질로 이루어진 부동태피막 안정화제 및 이를 적용한 기능성 비수 전해액의 제조에 관한 것이다.
본 발명의 새로운 비닐실레인계의 부동태피막 안정화제는 종래의 부동태피막 안정화제로 많이 사용하던 비닐렌 카보네이트(vinylene carbonate, VC)에 비해 제조단가가 월등히 낮아 가격경쟁력이 높을 뿐만 아니라, 초기 충전시 비수 전해액보다 먼저 분해되어 안정한 피막을 형성하여 비수 전해액의 분해를 막고, 특히 열에 약한 리튬헥사플루오로포스페이트와 같은 리튬염을 포함하는 전해액을 사용하여도 고온 충방전시 안정된 피막을 만들어 우수한 충방전 특성 및 안전성을 확보할 수 있다.-
公开(公告)号：KR100813309B1
公开(公告)日：2008-03-13
申请号：KR1020060118625
申请日：2006-11-28
Applicant: 한국과학기술원
IPC: H01M10/05
CPC classification number: H01M10/0567 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/622 , H01M4/623 , H01M4/625 , H01M4/661 , H01M10/052 , H01M10/0568 , H01M10/0569
Abstract: A nonaqueous electrolyte solution for a lithium secondary battery, and lithium secondary battery containing the nonaqueous electrolyte solution are provided to improve initial charge/discharge characteristics and high temperature lifetime characteristics. A nonaqueous electrolyte solution comprise a silane-based additive represented by X_n SiY_(4-n), wherein n is 1-3; X is CH2=CH-, CH2=(CH3)COOC3H6-, HN2C3H6-, NH2C2H4NHC3H6-, NH2COCHC3H6-, CH3COOC2H4NHC2H4NHC3H6-, NH2C2H4NHC2H4NHC3H6-, SHC3H6-, ClC3H6-, CH3-, CH2H5-, C2H5OCONHC3H6-, OCNC3H6-, C6H5-, C6H5CH2NHC3H6-, C3H5NC3H6-, H- or a halogen atom; and Y is an alkyl, alkoxy, acetoxy or cycloalkyl group capable of being substituted with a halogen atom, an aryl group, an aralkyl group or a phenyl group, a phenyl capable of being substituted with a halogen atom, -OC2H4OCH3, -Si(CH3)3, -OSi(CH3)3, -OSi(CH3)2H, -O(CH2CH2O)mCH3; -N(CH3)2 or a halogen atom; m is 1-10, but the case that X is CH2=CH- and Y is -OC2H4OCH3 is excluded.
Abstract translation: 提供了一种用于锂二次电池的非水电解质溶液和含有非水电解质溶液的锂二次电池，以提高初始充电/放电特性和高温寿命特性。 非水电解液包含由X_n SiY_（4-n）表示的硅烷基添加剂，其中n为1-3; X是CH 2 = CH-，CH 2 =（CH 3）COOC 3 H 6 - ，HN 2 C 3 H 6 - ，NH 2 C 2 H 4 NHC 3 H 6 - ，NH 2 COCHC 3 H 6 - ，CH 3 COOC 2 H 4 NHC 2 H 4 NHC 3 H 6 - ，NH 2 C 2 H 4 NHC 2 H 4 NHC 3 H 6 - ，SHC 3 H 6 - ，ClC 3 H 6 - ，CH 3 - ，CH 2 H 5 - ，C 2 H 5 OCONHC 3 H 6 - ，OCNC 3 H 6 - ，C 6 H 5 - ，C 6 H 5 CH 2 NHC 3 H 6 - ，C 3 H 5 NC 3 H 6 - ，H-或卤素原子; 可以被卤原子，芳基，芳烷基或苯基取代的烷基，烷氧基，乙酰氧基或环烷基，可被卤原子取代的苯基，-OC2H4OCH3，-Si（ CH3）3，-OSi（CH3）3，-OSi（CH3）2H，-O（CH2CH2O）mCH3; -N（CH 3）2或卤素原子; m为1-10，但X为CH 2 = CH-且Y为-OC 2 H 4 OCH 3的情况除外。
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公开(公告)号：KR100875126B1
公开(公告)日：2008-12-22
申请号：KR1020060111674
申请日：2006-11-13
Applicant: 한국과학기술원
CPC classification number: H01M10/4235 , H01M4/0404 , H01M4/0445 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/139 , H01M4/382 , H01M4/62 , H01M10/446
Abstract: 본 발명은 리튬이차전지용 전극 및 이를 포함하는 리튬이차전지에 관한 것으로, 보다 상세하게는 실레인계 첨가제를 전극의 구성요소로 포함함으로써 초기 충방전시 안정된 피막을 형성하여 초기 충방전 특성 및 고온 수명 특성이 향상된 리튬이차전지용 전극 및 이를 포함하는 리튬이차전지를 제공한다.
리튬이차전지, 실레인, SEIAbstract translation: 本发明是一种锂二次电池用电极，以及涉及包括相同的，并且更具体地，硅烷接管由包括添加剂作为高温寿命特性的电极的部件，并形成在放电过程中稳定的膜的初始充电和初始充放电特性的锂二次电池 提供了这种改进的用于锂二次电池的电极和包括该电极的锂二次电池。
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公开(公告)号：KR1020080043087A
公开(公告)日：2008-05-16
申请号：KR1020060111674
申请日：2006-11-13
Applicant: 한국과학기술원
CPC classification number: H01M10/4235 , H01M4/0404 , H01M4/0445 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/139 , H01M4/382 , H01M4/62 , H01M10/446
Abstract: An electrode for a lithium secondary battery is provided to improve initial charge/discharge characteristics and high-temperature life characteristics by forming a stable film upon initial charge/discharge. An electrode for a lithium secondary battery includes a silane-based additive. The silane-based additive is selected from the compounds represented by the formula of X_nSiY_(4-n), wherein n is 1-3, X is selected from CH2=CH-, CH2=(CH3)COOC3H6-, HN2C3H6-, NH2C2H4NHC3H6-, NH2COCHC3H6-, CH3COOC2H4NHC2H4NHC3H6-, NH2C2H4NHC2H4NHC3H6-, SHC3H6-, ClC3H6-, CH3-, CH2H5-, C2H5OCONHC3H6-, OCNC3H6-, C6H5-, C6H5CH2NHC3H6-, C3H5NC3H6-, H-, and halogen, and Y is selected from alkyl, alkoxy, acetoxy, and cycloalkyl substitutable with a functional group selected from the group comprising -H, halogen, aryl groups, aralkyl groups, and aryl groups, phenyl substitutable with halogen, -OC2H4OCH3, -Si(CH3)3, -OSi(CH3)3, -OSi(CH3)2H, -O(CH2CH2O)mCH3(m=1-10), -N(CH3)2, and halogen.
Abstract translation: 提供一种用于锂二次电池的电极，用于通过在初始充电/放电时形成稳定的膜来提高初始的充放电特性和高温寿命特性。 锂二次电池用电极包括硅烷类添加剂。 硅烷类添加剂选自由式X_nSiY_（4-n）表示的化合物，其中n为1-3，X选自CH 2 = CH-，CH 2 =（CH 3）COOC 3 H 6 - ，HN 2 C 3 H 6 - ，NH 2 C 2 H 4 NHC 3 H 6 - ，NH2COCHC3H6-，CH3COOC2H4NHC2H4NHC3H6-，NH2C2H4NHC2H4NHC3H6-，SHC3H6-，ClC3H6-，CH3-，CH2H5-，C2H5OCONHC3H6-，OCNC3H6-，C6H5-，C6H5CH2NHC3H6-，C3H5NC3H6-，H-和卤素，Y选自烷基 ，烷氧基，乙酰氧基和可用选自-H，卤素，芳基，芳烷基和芳基的官能团取代的环烷基，可被卤素取代的苯基，-OC 2 H 4 OCH 3，-Si（CH 3）3，-OSi（ CH3）3，-OSi（CH3）2H，-O（CH2CH2O）mCH3（m = 1-10），-N（CH3）2和卤素。
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公开(公告)号：KR1020070012094A
公开(公告)日：2007-01-25
申请号：KR1020050066929
申请日：2005-07-22
Applicant: 한국과학기술원
IPC: H01M10/05
CPC classification number: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M2220/30 , Y02E60/122
Abstract: Provided is a nonaqueous electrolyte for lithium secondary batteries, wherein a vinylsilane SEI layer stabilizer decomposes before a nonaqueous electrolyte upon initial charging to form a stable SEI layer, and thus prevents decomposition of a nonaqueous electrolyte and reduces irreversible capacity. To form a stable layer upon high-temperature charging and discharging of a lithium battery, the nonaqueous electrolyte for lithium secondary batteries consists of an organic solvent, a lithium salt, and an additive. As the additive, a compound represented by the following formula 1 is added to 100wt% of the organic solvent containing 0.8-2M of the lithium salt in an amount of 0.1-10wt%. In the formula 1, R1, R2, and R3 each is H or any one selected from C1-5 alkyl groups, and R4 is H or CH3.
Abstract translation: 提供一种用于锂二次电池的非水电解质，其中乙烯基硅烷SEI层稳定剂在初始充电之前在非水电解质之前分解形成稳定的SEI层，从而防止非水电解质的分解并降低不可逆容量。 为了在锂电池的高温充放电中形成稳定层，锂二次电池用非水电解质由有机溶剂，锂盐和添加剂构成。 作为添加剂，将含有0.1〜10重量％的含有0.8-2M的锂盐的有机溶剂的100重量％加入下式1表示的化合物。 在式1中，R 1，R 2和R 3各自为H或选自C 1-5烷基，R 4为H或CH 3的任何一种。
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