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公开(公告)号：KR1020140032577A
公开(公告)日：2014-03-17
申请号：KR1020120098791
申请日：2012-09-06
Applicant: 한국전기연구원
IPC: H01M4/139 , H01M4/62 , H01M4/04 , H01M10/052
CPC classification number: H01M4/1397 , H01M4/0404 , H01M4/134 , H01M4/58 , H01M4/622 , H01M10/0525 , Y02E60/122
Abstract: The present invention relates to a silicon-based cathode active material which is suppressed of an initial irreversible by inserting a lithium film, a method for manufacturing the same, and a lithium secondary battery comprising the same. The lithium secondary battery of the present invention includes a silicon-based cathode active material, manufactured by mixing a polyacrylic acid high-strength adhesive agent and a conductive material with a silicon based cathode active material. On the surface of the silicon-based cathode active material, lithium metal is added, in order to eliminate the initial irreversible capacity.
Abstract translation: 本发明涉及通过插入锂膜抑制初始不可逆的硅基阴极活性材料，其制造方法和包含该硅基阴极活性材料的锂二次电池。 本发明的锂二次电池包括通过将聚丙烯酸高强度粘合剂和导电材料与硅类阴极活性物质混合而制造的硅类阴极活性物质。 在硅基正极活性物质的表面上添加锂金属，以消除初始不可逆容量。
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公开(公告)号：KR101296789B1
公开(公告)日：2013-08-14
申请号：KR1020110060778
申请日：2011-06-22
Applicant: 한국전기연구원
IPC: H01M4/58 , H01M4/1397 , H01M4/62 , H01M10/0566
Abstract: 본 발명은 본 발명의 ZnO를 포함하는 아연계 음극활물질 제조방법은
(1) 아연 아세테이트, 인듐 아세테이트, 니켈 아세테이트를 졸겔의 화학방법으로 균일하게 혼합하여 Zn-In-Ni 복합물을 제조하되, 아연 아세테이트, 인듐 아세테이트, 니켈 아세테이트를 혼합한 후, 아크릴 아마이드와 메틸렌 비스 아크릴 아마이드를 70～80℃에서 교반 혼합하여 100～120℃에서 12시간 건조하는 Zn-In-Ni 복합물 제조 단계,
(2) 상기 Zn-In-Ni 복합물을 열처리하되, 상기 열처리는 300℃에서 5시간 동안 1차 열처리하고, 5℃/min으로 승온한후 550~750℃에서 3시간 동안 2차 열처리하여 Zn-In-Ni 산화물 복합체를 제조하는 것을 특징으로 한다.Abstract translation: 目的：一种锌基负极活性物质的制造方法，其能够提供高效率，高能量，长寿命，均匀分布的铟和镍的锂二次电池用锌系负极活性物质 。 构成：Zn-In-Ni负极活性物质的制造方法包括：通过使用溶胶凝胶的化学法均匀混合乙酸锌，醋酸铟，乙酸镍以形成Zn-In-Ni复合物的步骤; 以及对所制造的Zn-In-Ni进行热处理的工序。 热处理在氩气或还原气氛下进行。 锂二次电池包括负极，其包含负极活性材料。 在氩气或还原气氛下进行热处理。 锂二次电池包括负极，正极包含正极活性物质，离子导体包含Zn-In-Ni复合物作为负极活性物质。 （附图标记）（AA）放电率容量（mAh / g）; （BB）循环次数（次）
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公开(公告)号：KR1020130059534A
公开(公告)日：2013-06-07
申请号：KR1020110125564
申请日：2011-11-29
Applicant: 한국전기연구원
IPC: H01M4/139 , H01M4/48 , H01M10/052 , H01M4/62
CPC classification number: H01M4/362 , H01M4/622 , H01M4/625 , H01M10/0525 , Y02E60/122
Abstract: PURPOSE: A manufacturing method of a negative electrode active material electrode is provided to minimize content of a binder while maximizing adhesion, by mixing an aqueous binder instead of an organic binder. CONSTITUTION: A manufacturing method of a negative electrode comprises a step of manufacturing zinc acetate, indium acetate, nickel acetate by a sol-gel chemical method, to manufacture a Zn-In-Ni composite; a step of heat-treating the Zn-In-Ni composite; a step of mixing an aqueous binder which includes styrene butadiene rubber and carboxy methyl cellulose, and a conducting agent, to manufacture negative electrode mixture slurry; and a step of spreading the slurry on a copper current collector, and drying the slurry for compression.
Abstract translation: 目的：提供负极活性物质电极的制造方法，通过混合水性粘合剂代替有机粘合剂，使粘合剂的含量最小化，同时使附着力最大化。 构成：负极的制造方法包括通过溶胶 - 凝胶化学方法制造乙酸锌，醋酸铟，乙酸镍的步骤，制造Zn-In-Ni复合物; 对Zn-In-Ni复合材料进行热处理的步骤; 将包含苯乙烯丁二烯橡胶和羧甲基纤维素的水性粘合剂和导电剂混合以制造负极混合物浆料的步骤; 以及将浆料铺展在铜集电体上的步骤，干燥该浆料进行压缩。
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公开(公告)号：KR1020140046496A
公开(公告)日：2014-04-21
申请号：KR1020120098799
申请日：2012-09-06
Applicant: 한국전기연구원
IPC: H01M4/1393 , H01M4/62 , H01M10/052
CPC classification number: Y02E60/122 , Y02P70/54 , Y02T10/7011
Abstract: The present invention relates to a method for producing an electrode of silicon based negative electrode active material, which is highly favored as a negative electrode active material for a large lithium secondary battery, more particularly, to a lithium secondary battery containing Si-C nanocomposite negative electrode active material, which is silicon based composite, representing excellent cell characteristics by overcoming the initial irreversible capacity. The initial irreversible capacity is overcome by producing nanocomposite of silicon based negative electrode active material in nanoscale using an electricity explosion method; controlling the type and content of silicon based metal ion materials; developing by applying a PAA high-strength binder; and adding lithium metal on the surface of an electrode of negative electrode active material. The method of the present invention is a simple method, and enables the production of silicon Si-C nanocomposite negative electrode active material of quantitative initial Ah efficiency. The lithium secondary battery in which Si-C nanocomposite negative electrode active material is applied provides high output, high energy and long life span characteristics in addition to facilitate mass production and have economical characteristics.
Abstract translation: 本发明涉及一种硅基负极活性物质电极的制造方法，其特征在于，作为大型锂二次电池的负极活性物质，更具体地说，涉及含有Si-C纳米复合物负极的锂二次电池 电极活性材料，其是硅基复合材料，通过克服初始不可逆容量代表优异的电池特性。 通过使用电爆炸法，以纳米级制造硅基负极活性材料的纳米复合材料，克服了初始不可逆容量; 控制硅基金属离子材料的种类和含量; 通过应用PAA高强度粘合剂开发; 并在负极活性物质的电极的表面上添加锂金属。 本发明的方法是一种简单的方法，能够生产硅Si-C纳米复合材料负极活性材料的定量初始Ah效率。 其中应用Si-C纳米复合负极活性材料的锂二次电池除了促进批量生产之外，还具有高输出，高能量和长寿命特性，并且具有经济的特性。
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公开(公告)号：KR101386156B1
公开(公告)日：2014-04-21
申请号：KR1020120048819
申请日：2012-05-08
Applicant: 한국전기연구원
IPC: H01M4/139 , H01M4/62 , H01M4/58 , H01M10/052
CPC classification number: Y02E60/122 , Y02P70/54 , Y02T10/7011
Abstract: 본 발명은 전기자동차용 등 대형 리튬 2차 전지용 음극활물질로서 각광받고 있는 주석계 음극활물질 전극의 제조방법에 관한 것으로, 더욱 상세하게는 Sol-Gel법을 이용하여 균질한 화학성분 조성의 주석계 음극활물질 복합체를 제조하고, 주석계 금속이온재료 복합체의 종류와 함량의 조절, SBR-CMC 수계바인더를 적용한 개발 및 음극활물질 전극 표면에 리튬 금속을 첨가하여 초기 비가역용량의 해소를 통해서 우수한 전지특성을 나타내는 주석계 복합체인 Sn-Co-Fe-C 음극활물질을 포함하는 리튬이차전지를 제공한다.
본 발명에 따른 제조방법은 간단한 방법으로 정량적 초기 Ah 효율의 주석계 복합체 Sn-Co-Fe-C 음극활물질을 제조할 수 있으며 대량 생산이 용이하고 경제적일 뿐만 아니라, 본 발명의 Sn-Co-Fe-C 음극활물질을 적용한 리튬이차전지는 고출력, 고에너지 및 장수명 특성을 제공한다.-
Patent Agency Ranking
公开(公告)号：KR1020130000209A
公开(公告)日：2013-01-02
申请号：KR1020110060778
申请日：2011-06-22
Applicant: 한국전기연구원
IPC: H01M4/58 , H01M4/1397 , H01M4/62 , H01M10/0566
Abstract: PURPOSE: A manufacturing method for a zinc-based negative electrode active material is provided to a zinc-based negative electrode active material that is capable of providing a lithium secondary battery with high efficiency, high energy, long lifetime, and uniformly distributed indium and nickel. CONSTITUTION: A manufacturing method of a Zn-In-Ni negative electrode active material comprises: a step for uniformly mixing a zinc acetate, indium acetate, nickel acetate by a chemical method using sol gel to form a Zn-In-Ni composite; and a step for heat-treating the manufactured Zn-In-Ni. The heat-treatment is conducted under argon or reduction atmosphere. A lithium secondary battery comprises a negative electrode which comprises a negative electrode active material. The heat-treatment is processed under argon or reducing atmosphere. A lithium secondary battery comprises a negative electrode, a positive electrode comprises a positive electrode active material, and an ion conductor comprises Zn-In-Ni composite as a negative electrode active material. [Reference numerals] (AA) Discharging rate capacity(mAh/g); (BB) The number of cycles(times)
Abstract translation: 目的：一种锌基负极活性物质的制造方法，其能够提供高效率，高能量，长寿命，均匀分布的铟和镍的锂二次电池用锌系负极活性物质 。 构成：Zn-In-Ni负极活性物质的制造方法包括：通过使用溶胶凝胶的化学法均匀混合乙酸锌，醋酸铟，乙酸镍以形成Zn-In-Ni复合物的步骤; 以及对所制造的Zn-In-Ni进行热处理的工序。 热处理在氩气或还原气氛下进行。 锂二次电池包括负极，其包含负极活性材料。 在氩气或还原气氛下进行热处理。 锂二次电池包括负极，正极包含正极活性物质，离子导体包含Zn-In-Ni复合物作为负极活性物质。 （附图标记）（AA）放电率容量（mAh / g）; （BB）循环次数（次）
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公开(公告)号：KR101609127B1
公开(公告)日：2016-04-07
申请号：KR1020140048844
申请日：2014-04-23
Applicant: 한국전기연구원
IPC: H01M4/1395 , H01M4/62 , H01M4/134 , H01M10/052
Abstract: 리튬이차전지의다공성전극제조방법에있어서, 실리콘을포함하는전극활물질, 도전재및 바인더(binder)를소정비율로혼합하여슬러리를제조하는단계; 상기슬러리에소정온도에서제거될수 있는성질을가지는소정형상의고분자입자를첨가하는단계; 상기고분자입자가첨가된슬러리를집전체상에코팅하는단계; 및상기집전체를열 처리하는단계를포함하는것을특징으로하는본 발명의일 실시예에따른다공성전극제조방법이개시된다. 본발명의일 실시예에따른다공성전극제조방법을통해내부적으로다수의기공이형성된다공성의실리콘전극을제조할수 있어리튬이차전지의충방전동안실리콘을포함하는활물질의팽창으로인해이차전지의저장능력/저장용량이급속하게감소되는것을방지한사이클특성이우수한리튬이차전지를제조할수 있다.
Abstract translation: 公开了一种多孔电极的制造方法。 根据本发明的实施方案，该方法包括以下步骤：以预定比例混合包括硅，导电材料和粘合剂的电极活性材料来制备浆料; 将能够在预定温度下被去除的性能的高分子粒子添加到浆料中; 将加入高分子粒子的浆料加到集电体上; 对集电体进行热处理。 通过本发明的实施方式的多孔电极的制造方法，可以制造出形成有多个气孔的多孔硅电极，由此制造具有优异的循环特性的锂二次电池，以防止大大降低储存性/ 由于在锂二次电池的充电和放电期间由于包括硅酮的活性材料的膨胀而导致的二次电池的存储容量。
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公开(公告)号：KR101264343B1
公开(公告)日：2013-05-14
申请号：KR1020110057088
申请日：2011-06-13
Applicant: 한국전기연구원
IPC: H01M4/58 , H01M4/04 , H01M10/052 , H01M4/62
CPC classification number: Y02E60/122 , Y02P70/54 , Y02T10/7011
Abstract: 본발명은전기자동차용등 대형리튬 2차전지용음극활물질로서각광받고있는주석계음극활물질의제조방법에관한것으로, 더욱상세하게는 Sol-Gel법을이용하여균질한화학성분조성의주석계음극활물질복합체를제조하고, 주석계금속이온재료복합체의종류와함량의조절, 환원제의적용, 열처리조건의개발을통하여우수한전지특성을보이는주석계복합체인 Sn-Co-Fe-C를제조하는방법을제공한다. 또한, 본발명에따른제조방법은간단한방법으로주석계복합체 Sn-Co-Fe-C 음극활물질을제조할수 있으며대량생산이용이하고경제적일뿐만아니라, 본발명의 Sn-Co-Fe-C 음극활물질을적용한리튬이차전지는고출력, 고에너지및 긴수명특성을제공한다.
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公开(公告)号：KR1020130049114A
公开(公告)日：2013-05-13
申请号：KR1020110114179
申请日：2011-11-03
Applicant: 한국전기연구원
IPC: H01M4/139 , H01M4/58 , H01M4/62 , H01M10/052
CPC classification number: Y02E60/122 , Y02P70/54 , Y02T10/7011 , H01M4/139 , H01M4/133 , H01M4/134 , H01M4/362 , H01M4/387 , H01M4/587 , H01M4/622 , H01M4/625 , H01M10/0525
Abstract: PURPOSE: A manufacturing method of a negative electrode active material is provided to improve electrochemical performance of a negative electrode by using a styrene butadiene rubber and carboxyl methyl cellulose composite binder. CONSTITUTION: A manufacturing method of a negative electrode active material comprises a step of mixing a metal salt aqueous solution and reducing agent; a step of forming a reducing agent/metal ion sol by mixing the mixture; a step of forming a reducing agent/metal ion gel by heating the sol; a step of sintering the reducing agent/metal ion composite to form Sn-Co-Fe-C composite negative electrode active material; a step of mixing an aqueous binder and conducting agent into the negative electrode active material and manufacturing a negative electrode mixture slurry; and a step of spreading the negative electrode mixture slurry on a CU foil and drying the spread material. [Reference numerals] (AA) Dissolve minimum amount in distilled water at 80°C; (BB) Sn-Co-Fe-C ion mixed solution; (CC) Citric acid(1 molar ratio); (DD) Acrylamide(1-z molar ratio); (EE) N,N'-methylene-bis-acrylamide(z molar ratio); (FF) Stir at 80°C; (GG) (Sn-Co-Fe-C) aqueous solution; (HH) Sn-Co-Fe-C CAM(1 molar ratio); (II) Dry(100°C, 12h); (JJ) Sn-Co-Fe-C composite; (KK) Thermally treat(300°C, 5h, Ar); (LL) Plasticized composite; (MM) Pulverize; (NN) Pulverized plasticized composite; (OO) Thermally treat at 550°C, 3h, Ar, 5°C/min / Pulverize and distribute; (PP) Sn-Co-Fe-C compound anodizing material
Abstract translation: 目的：提供一种负极活性物质的制造方法，其通过使用苯乙烯丁二烯橡胶和羧甲基纤维素复合粘合剂来改善负极的电化学性能。 构成：负极活性物质的制造方法包括将金属盐水溶液和还原剂混合的工序; 通过混合该混合物形成还原剂/金属离子溶胶的步骤; 通过加热溶胶形成还原剂/金属离子凝胶的步骤; 烧结还原剂/金属离子复合物以形成Sn-Co-Fe-C复合负极活性材料的步骤; 将水性粘合剂和导电剂混合到负极活性物质中并制造负极混合浆料的步骤; 以及将负极混合物浆料铺展在CU箔上并干燥铺展材料的步骤。 （标号）（AA）将最小量溶于80℃的蒸馏水中; （BB）Sn-Co-Fe-C离子混合溶液; （CC）柠檬酸（1摩尔比）; （DD）丙烯酰胺（1-z摩尔比）; （EE）N，N'-亚甲基双丙烯酰胺（z摩尔比）; （FF）在80℃下搅拌; （GG）（Sn-Co-Fe-C）水溶液; （HH）Sn-Co-Fe-C CAM（1摩尔比）; （II）干燥（100℃，12h）; （JJ）Sn-Co-Fe-C复合材料; （KK）热处理（300℃，5h，Ar）; （LL）增塑复合材料; （MM）粉碎; （NN）粉碎塑化复合材料; （OO）在550°C，3h，Ar，5°C / min热处理粉碎和分散; （PP）Sn-Co-Fe-C复合阳极氧化材料
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公开(公告)号：KR1020160047001A
公开(公告)日：2016-05-02
申请号：KR1020140142123
申请日：2014-10-20
Applicant: 한국전기연구원
IPC: H01M10/04 , H01M10/058 , H01M4/13
Abstract: 제조공정을단순화하고설계유연성을갖는전지구조가개시된다. 본발명은상기기술적과제를달성하기위하여본 발명은, 기재쉬트와상기기재쉬트의일면에형성되는복수의양극및 음극을포함하고, 상기양극과음극이상기기재쉬트상에서교번하여배치되는전극어셈블리; 및상기양극및 음극사이의이온전도를매개하기위한전해질을포함하는전지를제공한다. 본발명에따르면, 단일의쉬트상에전지를구현함으로써적은수의전지콤포넌트로간단한제조공정을거쳐전지의제조가가능해진다.
Abstract translation: 公开了一种在简化制造过程时具有设计灵活性的电极结构。 根据本发明，提供一种电极，其包括电极组件，该电极组件包括基板和多个阴极和阳极，所述多个阴极和阳极形成在基板的一侧上并且交替地布置在基板上，并且电解质介导离子转移 阴极和阳极之间。 根据本发明，通过在单片上设置电极，可以容易地通过具有少量电极成分的简单工艺来制造电极。
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