摘要:
A process for producing a lithium-containing composite oxide for a positive electrode active material for use in a lithium secondary battery, the oxide having the formula LipNxMmOzFa (wherein N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9≦p≦1.2, 0.9≦x
摘要翻译:一种锂二次电池用正极活性物质的含锂复合氧化物的制造方法,其特征在于,具有式LiNiMMOzFa(其中,N为选自Co,Mn,Ni, M是选自Al,碱土金属元素和除N之外的过渡金属元素中的至少一种元素,0.9和nlE; p
摘要:
To provide a process for producing a lithium-cobalt composite oxide for a positive electrode of a lithium secondary battery, which has a large volume capacity density, high safety, high charge and discharge cycle durability, high press density and high productivity. A process for producing a lithium-cobalt composite oxide represented by the formula LipCoxMyOzFa (wherein M is a transition metal element other than Co, or an alkaline earth metal element, O.9≦p≦1.1, 0.980≦x≦1.000, 0≦y≦0.02, 1.9≦z≦2.1, x+y=1, and 0≦a≦0.02), characterized in that as a cobalt source, a mixture is used which comprises cobalt hydroxide in the form of substantially spherical secondary particles with an average particle size of from 8 to 20 μm formed by agglomeration of primary particles and tricobalt tetroxide in the form of secondary particles with an average particle size of from 2 to 10 μm formed by agglomeration of primary particles, in a cobalt atomic ratio of from 5:1 to 1:5, and firing is carried out at from 700 to 1,050° C.
摘要翻译:为了提供具有大容量密度,高安全性,高充放电循环耐久性,高压力密度和高生产率的锂二次电池正极用锂钴复合氧化物的制造方法。 一种由下式表示的锂 - 钴复合氧化物的制备方法:其中R 1,R 2,R 2, (其中M是除Co以外的过渡金属元素或碱土金属元素,O.9 <= p <= 1.1,0.980 <= x <=1.000,0≤y <= 0.02,1.9 <= z <= 2.1,x + y = 1,0 <= a <= 0.02),其特征在于,作为钴源,使用包含基本上为球形的氢氧化钴的混合物 平均粒度为8〜20μm的二次粒子是通过一次粒子和四氧化四铁的结合而形成的,该二次粒子是以原子粒子聚集形成的平均粒径为2〜10μm的二次粒子,以钴原子 比例为5:1至1:5,焙烧时间为700至1050℃。
摘要:
The present invention provides a lithium-transition metal composite oxide having a large volume capacity density, high safety, excellent coating uniformity, excellent charge/discharge cycle durability and excellent low temperature characteristics, and suitable as a positive electrode active material for a lithium secondary cell.A lithium-transition metal composite oxide which is represented by the formula LixM1−yNyO2 (wherein 0.2≦x≦1.2, 0≦y≦0.7, M is a transition metal element, and N is a transition metal element other than M or an alkaline earth metal element), wherein in the distribution curve of the cumulative volume particle size of said lithium composite oxide, the inclination of the curve at a cumulative volume fraction of 20% and 80% are at most 9%/μm and at least 3%/μm, respectively, and the average particle size is from 3 to 20 μm.
摘要:
A liquid crystal polyester resin composition which suppresses the formation of a blister caused by a heat treatment at a high temperature and has excellent moldability. This composition comprises (A) a liquid crystal polyester comprising at least two aromatic oxycarbonyl recurring units and (B) a liquid crystal polyester comprising at least two aromatic oxycarbonyl recurring units, at least one aromatic dioxy recurring unit and at least one aromatic dicarbonyl recurring unit. The weight ratio of the liquid crystal polyester (A) to the liquid crystal polyester (B) is 90/10 to 30/70.
摘要:
A process for producing a lithium-containing composite oxide for a positive electrode active material for use in a lithium secondary battery, the oxide having the formula LipQqNxMyOzFa (wherein Q is at least one element selected from the group consisting of titanium, zirconium, niobium and tantalum, N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than Q and N, 0.9≦p≦1.1, 0≦q
摘要翻译:一种锂二次电池用正极活性物质的含锂复合氧化物的制造方法,其特征在于,具有式LipQqNxMyOzFa(其中,Q为选自钛,锆,铌和 钽,N是选自Co,Mn和Ni中的至少一种元素,M是选自Al,碱土金属元素和Q和N以外的过渡金属元素中的至少一种元素,0.9&nlE ; p&nlE; 1.1,0和nlE; q <0.03,0.97和nlE; x和nlE; 1.00,0和nlE; y <0.03,1.9&amp; nlE; z&nlE; 2.1,q + x + y = 1和0&lt; nlE; a&nlE; 0.02) 锂元素源和N元素源的混合物,当这些元素存在时,M元素源和/或氟源在含氧气氛中,其中Q元素源是具有 pH为0.5〜11。
摘要:
The present invention provides a lithium-containing composite oxide for a positive electrode for a lithium secondary battery, which has a large volume capacity density and high safety, and excellent durability for charge and discharge cycles and charge and discharge rate property, and its production method.The lithium-containing composite oxide is represented by the general formula LipNxMyOzFa (where N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, Sn, alkaline earth metal elements and transition metal elements other than Co, Mn and Ni, 0.9≦p≦1.2, 0.965≦x
摘要翻译:本发明提供一种锂二次电池用正极用锂复合氧化物,其具有体积容量密度大,安全性高,充放电循环耐久性,充放电率特性及其制造方法 。 含锂复合氧化物由通式LipNxMyOzFa(其中N是选自Co,Mn和Ni中的至少一种元素)表示,M是选自Al,Sn,碱性中的至少一种元素 除Co,Mn和Ni以外的其它金属元素和过渡金属元素,0.9和nlE; p&nlE; 1.2,0.965和nlE; x <2.00,0
摘要:
A positive electrode active material for a lithium secondary battery containing a lithium-cobalt composite oxide is produced by firing, as a cobalt source, a mixture of substantially spherical cobalt hydroxide or tricobalt tetraoxide having such a sharp particle size distribution that the average particle size D50 is from 7 to 20 μm, and cobalt oxyhydroxide having an average particle size of secondary particles formed by agglomeration of primary particles of from 7 to 20 μm, in a proportion of from 5:1 to 1:5 as the cobalt atomic ratio, at a temperature of from 700° C. to 1050° C. in an oxygen-comprising atmosphere.
摘要:
Provided are a cathode active material for a non-aqueous electrolyte secondary battery with high operating voltage, high volume capacity density, high safety and excellent charge and discharge cyclic properties, and its production method.The cathode active material for a non-aqueous electrolyte secondary battery, which comprises a lithium-containing composite oxide powder, which is represented by the formula LipNxMyOzFa (wherein N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than the element N, 0.9≦p≦1.1, 0.965≦x
摘要翻译:提供一种具有高工作电压,高体积容量密度,高安全性和优异的充放电循环性能的非水电解质二次电池用正极活性物质及其制造方法。 用于非水电解质二次电池的正极活性材料,其包含由下式表示的含锂复合氧化物粉末:由下式表示:N < (其中N是选自Co,Mn和Ni中的至少一种元素,M是至少一种元素),其中N是至少一种选自Co,Mn和Ni的元素,M是至少一种元素 选自除了元素N之外的Al,碱土金属元素和过渡金属元素,0.9 <= p <= 1.1,0.965 <= x <1.00,0
摘要:
A process for producing a lithium-containing composite oxide having a large volume capacity density, high safety, excellent durability for charge/discharge cycles, and further, excellent low temperature characteristics, which is suitable for mass production, is provided.A process for producing a lithium-containing composite oxide represented by a general formula LipNxMyOzFa (wherein N is at least one type of element selected from the group consisting of Co, Mn and Ni, M is at least one type of element selected from the group consisting of Al, an alkali earth metal element and a transition metal element other than N, 0.9≦p≦1.2, 0.97≦x≦1.00, 0
摘要翻译:本发明提供一种生产具有大体积容量密度,高安全性,充放电循环耐久性优异的锂复合氧化物的方法,以及适用于批量生产的优异的低温特性。 一种用于制备由通式为N x N x O z O z z O z表示的含锂复合氧化物的方法 >其中N是选自Co,Mn和Ni中的至少一种元素,M是选自Al,碱的至少一种元素 除了N,0.9 <= p <= 1.2,0.97 <= x <= 1.00,0
摘要:
To provide a cathode active material for a lithium secondary battery, which is low in gas generation and has high safety and excellent durability for charge and discharge cycles even at a high charge voltage.A process for producing a lithium-containing composite oxide represented by the formula LipLqNxMyOzFa (wherein L is at least one element selected from the group of B and P, N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9≦p≦1.1, 1.0≦q
摘要翻译:为了提供即使在高充电电压下,气体产生低,并具有高安全性和优异的充放电循环耐久性的锂二次电池用正极活性物质。 一种由式LiLqNxMyOzFa(其中L是选自B和P中的至少一种元素,N是选自Co,Mn和Ni中的至少一种元素)的由式LiLqNxMyOzFa表示的含锂复合氧化物的方法, M是选自Al,碱土金属元素和除N之外的过渡金属元素中的至少一种元素,0.9&nlE; p&nlE; 1.1,1.0&amp; nlE; q <0.03,0.97&amp; nlE; x <1.00,0和nlE; y& ;其中含有N元素,如果需要的话,含有M元素和氟的含锂复合氧化物粉末是预先形成的,其中,0.03,1.9和nlE; z和nlE; 2.1,q + x + y = 1和0& 准备 将含锂复合氧化物粉末与含有L元素源的水溶液混合; 从所得混合物中除去水性介质,然后在含氧气氛中在300〜1050℃下烧成。