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1.发明授权습식 기계화학적 밀링을 이용한 리튬 아이언 포스페이트 제조 방법, 그 방법에 의해 제조된 리튬 아이언 포스페이트및 이를 양극 활물질에 포함하는 리튬이차전지 有权采用湿式机械化学研磨法制备LiFePO4的方法和使用该方法制备的LiFePO4
公开(公告)号：KR101078607B1
公开(公告)日：2011-11-01
申请号：KR1020090019403
申请日：2009-03-06
Applicant: 고려대학교 산학협력단 , 주식회사 엘 앤 에프
Abstract: 본발명에따른 LiFePO제조방법은 LiFePO합성을위한출발물질에습식밀링매개체를첨가함으로써별도의흑연첨가제를첨가하지않더라도열처리과정에서잔류흑연이합성된 LiFePO표면에코팅됨으로써 LiFePO의전기전도도문제를해결할수 있는장점이있다.
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2.发明公开습식 기계화학적 밀링을 이용한 리튬 아이언 포스페이트 제조 방법, 그 방법에 의해 제조된 리튬 아이언 포스페이트및 이를 양극 활물질에 포함하는 리튬이차전지 有权使用湿法机械研磨制备LIFEPO4的方法和使用该方法制造的LIFEPO4
公开(公告)号：KR1020100100486A
公开(公告)日：2010-09-15
申请号：KR1020090019403
申请日：2009-03-06
Applicant: 고려대학교 산학협력단 , 주식회사 엘 앤 에프
CPC classification number: H01M4/5825 , C01B25/375 , H01M4/366 , H01M4/583 , H01M4/625 , H01M10/052 , Y02E60/122
Abstract: PURPOSE: A manufacturing method of lithium iron phosphate, the lithium iron phosphate manufactured therefrom, and a lithium secondary battery including thereof are provided to simplify the manufacturing process of the lithium iron phosphate by removing a transition metal substitution process. CONSTITUTION: A manufacturing method of lithium iron phosphate comprises the following steps: inserting a starting material to a milling bowl(S110); inserting a wet milling media to the milling bowl(S120); forming a precursor of the lithium iron phosphate through wet milling(S130); and synthesizing the lithium iron phosphate by heat-processing the precursor(S140).
Abstract translation: 目的：提供磷酸铁锂，由其制造的磷酸铁锂及其二次电池的制造方法，以通过去除过渡金属取代工艺来简化磷酸铁锂的制造过程。 构成：磷酸铁锂的制造方法包括以下步骤：将起始材料插入研磨钵（S110）中; 将湿研磨介质插入研钵中（S120）; 通过湿法研磨形成磷酸铁锂的前体（S130）; 并通过加热前体合成磷酸铁锂（S140）。
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公开(公告)号：KR1020120023270A
公开(公告)日：2012-03-13
申请号：KR1020100085544
申请日：2010-09-01
Applicant: 고려대학교 산학협력단
IPC: H01M4/58 , H01M10/0525 , C01B25/45 , H01M4/131
CPC classification number: C01B25/45 , C01P2006/40 , H01M4/136 , H01M4/5825 , H01M10/0525 , Y02E60/122
Abstract: PURPOSE: A manufacturing method of LiFePO4 for lithium secondary battery positive electrode material is provided to control the shape of particle to the shape in which lithium ions are easily inserted or extracted, by controlling the concentration and pH of starting material, thereby improving conductivity. CONSTITUTION: A manufacturing method of LiFePO4 for lithium secondary battery positive electrode material comprises: lithium acetate, iron sulfate and ammonium dihydrogen phosphate into distilled water; a step of mixing the solution in container; a step of adding pH modifier for controlling the pH of the mixed solution; and a step of putting the mixed solution into hydrothermal synthesizer, and then hydrothermal synthesizing the same. The molar ratio of the lithium acetate, iron sulfate and ammonium dihydrogen phosphate dissolved into the distilled water is 1-3:1:1.
Abstract translation: 目的：提供锂二次电池正极材料的LiFePO 4的制造方法，通过控制原料的浓度和pH，将粒子的形状控制为易于插入或提取锂离子的形状，从而提高导电性。 构成：用于锂二次电池正极材料的LiFePO 4的制造方法包括：将乙酸锂，硫酸铁和磷酸二氢铵转化成蒸馏水; 将溶液混合在容器中的步骤; 添加pH调节剂以控制混合溶液的pH的步骤; 并将混合溶液放入水热合成器中，然后水热合成。 溶解在蒸馏水中的乙酸锂，硫酸铁和磷酸二氢铵的摩尔比为1-3:1:1。
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