公开(公告)号：KR1020130033155A

公开(公告)日：2013-04-03

申请号：KR1020110097059

申请日：2011-09-26

Applicant: 전자부품연구원

Inventor： 송준호 ,  김영준 ,  김점수 ,  조우석 ,  김재헌 ,  이준성 ,  김진화 ,  이경준

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/1391 ,  H01M10/052

CPC classification number: H01M4/131 ,  B82Y30/00 ,  C01G53/00 ,  C01G53/006 ,  C01G53/44 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  H01M4/483 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M4/54 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/364 ,  H01M4/382

Abstract: PURPOSE: A positive active material is provided to obtain a capacity of 220mAhg^-1 or more and to improve the charging and discharging properties and high voltage performance of a lithium secondary battery. CONSTITUTION: A thickness of a positive active material has a plate with a thickness of 1-30nm and is represented by chemical formula 1, Ni_xCo_yMn_(1-x-y-z)M_z(OH). The positive active material is manufactured using the precursor. The size of a primary particle is 1-500nm and is represented by chemical formula 2, Li_wNi_xCo_yMn_(1-x-y-z)M_zO_2. In the chemical formulas, 1.2

Abstract translation: 目的：提供正极活性物质以获得220mAhg -1以上的容量，并提高锂二次电池的充放电性能和高电压性能。 构成：正极活性物质的厚度为厚度为1-30nm的板，由化学式1 Ni_xCo_yMn_（1-x-y-z）M_z（OH）表示。 使用前体制造正极活性物质。 一次粒子的尺寸为1-500nm，由化学式2 Li_wNi_xCo_yMn_（1-x-y-z）M_zO_2表示。 在化学式中，1.2 <= w <= 1.5,0

公开(公告)号：KR1020130010808A

公开(公告)日：2013-01-29

申请号：KR1020110071690

申请日：2011-07-19

Applicant: 전자부품연구원

Inventor： 송준호 ,  김영준 ,  조우석 ,  김원태 ,  정연욱

IPC: H01M4/48 ,  C01G31/00 ,  H01M4/1391 ,  H01M10/052

CPC classification number: H01M4/485 ,  C01G31/00 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/40 ,  H01M10/0525 ,  Y02E60/122

Abstract: PURPOSE: A negative electrode material for lithium secondary batteries is provided to have extremely high charging voltage when used in the negative electrode by having extremely low discharging voltage, thereby providing energy density of a battery. CONSTITUTION: A negative electrode material for lithium secondary batteries is represented by chemical formula: Li_aV_bO_c and is a lithium-vanadium complex oxide that lithium ions can be inserted into/separated from the lithium-vanadium complex oxide. In chemical formula, a/b≥3.0 and c= Ua+5b ^/2. A manufacturing method of the negative electrode material comprises: a step of manufacturing a uniform mixture by mixing a lithium supply source which contains oxygen atoms, and a vanadium supply source which contains oxygen atoms; and a step of heat-treating the lithium-vanadium complex oxide by heat-treating the uniform mixture under an oxidation atmosphere.

Abstract translation: 目的：提供一种用于锂二次电池的负极材料，其通过具有极低的放电电压而在用于负极时具有极高的充电电压，从而提供电池的能量密度。 构成：用于锂二次电池的负极材料由化学式Li_aV_bO_c表示，并且是锂离子可以从锂 - 钒复合氧化物中插入/分离的锂 - 钒复合氧化物。 在化学式中，a /b≥3.0和c = Ua + 5b ^ / 2。 负极材料的制造方法包括：通过混合含有氧原子的锂供给源和含有氧原子的钒供给源来制造均匀混合物的步骤; 以及在氧化气氛下对均匀混合物进行热处理来对锂钒复合氧化物进行热处理的工序。