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    • 11. 发明公开
    • 고용량 망간계 산화물 소재의 전극제조공정 및 충전기술
    • 作为锂电池阴极材料的MN氧化物的制造方法和充电锂电池的方法
    • KR1020130043950A
    • 2013-05-02
    • KR1020110108160
    • 2011-10-21
    • 한국생산기술연구원
    • 김호성박성희김경완강주희오익현장덕례김우성
    • H01M4/505H01M4/525H01M10/052H01M4/1391
    • H01M4/1391H01M4/131H01M4/505H01M10/052H01M10/44Y02E60/12
    • PURPOSE: A manufacturing method of electrodes for lithium secondary batteries is provided to enhance the durability default rate suppression, high output properties by enhancing the usage rate of active materials and charging efficiencies. CONSTITUTION: A manufacturing method of electrodes for lithium secondary batteries comprises the following steps: manufacturing slurry by mixing a Li2MnO3 based composite material with a conductive material and a binder(S14); coating the slurry(S15); drying the coated slurry(S16); compressing the dried slurry(S17); and punching the compressed material into an electrode cell form(S18). A method for charging and discharging the lithium secondary batteries repeatedly charges and discharges the unit cell, in which a Li2MnO3 based composite material Li(Li xNi yCo zMn wO 2+α) is applied, by stages in a range of 2.0-4. 9V. [Reference numerals] (S11) Active material precursor; (S12) Dry materials; (S13) Dry mix; (S14) Become paste(+ Conductor + PVDF); (S15) Coat on an Al foil; (S16) Dry; (S17) Compress(rolling); (S18) Coin cell punch; (S19) Vacuum dry; (S20) Complete the manufacturing of an electrode
    • 目的:提供锂二次电池电极的制造方法,通过提高活性物质的使用率和充电效率来提高耐久性默认速率抑制,高输出性能。 构成:锂二次电池用电极的制造方法包括以下步骤:通过将Li 2 MnO 3基复合材料与导电材料和粘合剂混合来制造浆料(S14); 涂布浆料(S15); 干燥涂布浆料(S16); 压缩干燥的浆料(S17); 并将压缩材料冲压成电极单元格(S18)。 锂二次电池的充放电方法,在2.0-4的范围内分阶段地反复充放电施加Li 2 MnO 3系复合材料Li(Li x Ni y Co z Mn x O 2 +α)的单电池。 9V。 (附图标记)(S11)活性物质前体; (S12)干料; (S13)干混; (S14)成为糊(+导体+ PVDF); (S15)在铝箔上涂覆; (S16)干燥; (S17)压缩(滚动); (S18)硬币电池冲头; (S19)真空干燥; (S20)完成电极的制造
    • 12. 发明公开
    • 리튬이차전지용 고용량 망간계 산화물 합성공정 및 이를 이용한 전지 제조방법
    • 作为锂电池阴极材料的MN氧化物的合成方法和制造锂电池的方法
    • KR1020130043949A
    • 2013-05-02
    • KR1020110108159
    • 2011-10-21
    • 한국생산기술연구원
    • 김호성강주희오익현부성재장덕례김태원
    • H01M4/505H01M4/525H01M4/1391H01M10/052
    • C01G45/1257C01P2006/40H01M4/131H01M4/505H01M10/052Y02E60/12
    • PURPOSE: A manufacturing method of a cathode active material powder is provided to synthesize the cathode active material powder with high safety, high capacity, and high voltage and maximize the increase of Li impregnated into a crystalline structure. CONSTITUTION: A manufacturing method of cathode active material powder for lithium secondary batteries comprises the following steps: synthesizing Li2MnO3 by coprecipitation; and mixing the Li2MnO3 with LiMn1/3Co1/3Ni1/3O 2(NMC). A manufacturing method of electrode for lithium secondary batteries comprises the following steps: manufacturing slurry using a composite material in which NMC is mixed with the Li2MnO3 manufactured by coprecipitation; manufacturing anode by coating the current collector with the slurry; and manufacturing an electrode by setting a lithium metal as cathode and equipping with a separator and an electrolyte. [Reference numerals] (1) Titrate; (2) Adjust pH; (3) Dry; (S11) LiOH·H2O solution(pH 12); (S12) Mn(NO3)2·6H2O solution(pH 3); (S13) Mix; (S14) Precipitate Li-Mn(pH 11.5); (S15) Li2MnO3 precursor; (S16) Primarily sinter at 650°C for 12 hours; (S17) Secondarily sinter at 850°C for 24 hours
    • 目的:提供一种正极活性物质粉末的制造方法以合成具有高安全性,高容量和高电压的正极活性物质粉末,并且使浸渍到晶体结构中的Li的增加最大化。 构成:用于锂二次电池的正极活性物质粉末的制造方法包括以下步骤:通过共沉淀合成Li 2 MnO 3; 并将Li2MnO3与LiMn1 / 3Co1 / 3Ni1 / 3O2(NMC)混合。 锂二次电池用电极的制造方法包括以下步骤:使用其中NMC与通过共沉淀制造的Li2MnO3混合的复合材料制造浆料; 通过用该浆料涂覆集流体来制造阳极; 并通过将锂金属设置为阴极并配备隔膜和电解质来制造电极。 (附图标记)(1)滴定度 (2)调节pH值; (3)干燥; (S11)LiOH·H 2 O溶液(pH12); (S12)Mn(NO3)2·6H2O溶液(pH3); (S13)混合; (S14)沉淀Li-Mn(pH 11.5); (S15)Li2MnO3前体; (S16)主要在650℃烧结12小时; (S17)在850℃下二次烧结24小时