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1. 发明授权

US09643859B2 Process for producing carbonate compound and cathode active material 有权
公开(公告)号：US09643859B2
公开(公告)日：2017-05-09
申请号：US14798565
申请日：2015-07-14
申请人： ASAHI GLASS COMPANY, LIMITED
发明人： Tomohiro Sakai , Tsubasa Takasugi , Takuya Teratani
IPC分类号： H01M10/0525 , C01G53/00 , H01M4/525 , H01M4/131 , H01M4/505 , H01M4/02
CPC分类号： C01G53/006 , C01G53/50 , C01P2002/50 , C01P2002/52 , C01P2004/03 , C01P2004/61 , C01P2006/12 , C01P2006/40 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/028
摘要： To provide a carbonate compound and a cathode active material, whereby a lithium ion secondary battery having excellent cycle characteristics can be obtained.A process for producing a carbonate compound, which comprises mixing a sulfate (A) comprising a sulfate comprising a sulfate of Mn and a sulfate of Ni, or a sulfate comprising a sulfate of Mn, a sulfate of Ni and a sulfate of Co, and a carbonate (B) which is at least one carbonate selected from the group consisting of sodium carbonate and potassium carbonate, in the form of aqueous solutions and controlling the proportion of Mn to the total of Ni, Co and Mn contained in the sulfate (A) to be higher than 65 mol % at the initiation of the mixing, to precipitate a carbonate compound having a proportion of Mn of from 33.3 to 65 mol %, a proportion of Ni of from 17.5 to 50 mol % and a proportion of Co of from 0 to 33.3 mol % to the total of Ni, Co and Mn in the total average composition. A process for producing a cathode active material, which comprises mixing the carbonate compound obtained by the above process and lithium carbonate, followed by firing at from 500 to 1,000° C.

2. 发明授权

US09450228B2 Cathode active material, positive electrode for lithium ion secondary battery, and lithium ion secondary battery 有权
标题翻译：阴极活性物质，锂离子二次电池用正极和锂离子二次电池
公开(公告)号：US09450228B2
公开(公告)日：2016-09-20
申请号：US14745934
申请日：2015-06-22
申请人： Asahi Glass Company, Limited
发明人： Tomohiro Sakai , Tsubasa Takasugi
IPC分类号： H01M4/131 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/62 , C01G53/00 , H01M4/02
CPC分类号： H01M4/131 , C01G53/50 , C01P2002/50 , C01P2002/52 , C01P2002/74 , C01P2002/76 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2006/12 , C01P2006/40 , H01M4/364 , H01M4/505 , H01M4/525 , H01M4/621 , H01M4/623 , H01M4/624 , H01M4/625 , H01M2004/028
摘要： A cathode active material comprising secondary particles having a plurality of primary particles of a lithium-containing composite oxide agglomerated, the lithium-containing composite oxide being represented by LixNiaCobMncMdOy (x: 1.1 to 1.7, a: 0.15 to 0.5, b: 0 to 0.33, c: 0.33 to 0.85, M: another metal element, d: 0 to 0.05, a+b+c+d=1, and y: the number of moles of oxygen atom (O) required to satisfy the valences of the metal elements), and I020/I003 in an X-ray diffraction pattern being from 0.02 to 0.3, wherein the porosity in a cross section of the secondary particles is from 5 to 20%, and the percentage of the maximum void in a cross section of the secondary particles is from 0.1 to 10%.
摘要翻译：一种正极活性物质，其包含具有多个附着的含锂复合氧化物的一次粒子的二次粒子，所述含锂复合氧化物由LixNiaCobMncMdOy（x：1.1〜1.7，a：0.15〜0.5，b：0〜0.33 ，c：0.33〜0.85，M：另一种金属元素，d：0〜0.05，a + b + c + d = 1，y：满足金属价态所需的氧原子（O）的摩尔数元素）和I020 / I003的X射线衍射图形为0.02〜0.3，其中二次粒子的截面中的孔隙率为5〜20％，横截面的最大空隙率二次粒子为0.1〜10％。

3. 发明申请

US20160043396A1 CATHODE ACTIVE MATERIAL 审中-公开
标题翻译：阴极活性材料
公开(公告)号：US20160043396A1
公开(公告)日：2016-02-11
申请号：US14918638
申请日：2015-10-21
申请人： ASAHI GLASS COMPANY, LIMITED
发明人： Tomohiro SAKAI , Sadatatsu Ikeda , Tsubasa Takasugi , Takuya Teratani
IPC分类号： H01M4/505 , H01M4/525
CPC分类号： H01M4/505 , C01G45/1228 , C01G51/42 , C01G53/42 , C01G53/50 , C01P2002/72 , C01P2004/03 , C01P2004/04 , C01P2004/61 , C01P2006/12 , H01M4/525 , H01M2004/028
摘要： To provide a cathode active material to be used for a positive electrode of a lithium ion secondary battery having a high discharge capacity and favorable cycle durability.A cathode active material, which comprises a lithium-containing composite oxide containing at least one transition metal element (X) selected from the group consisting of Ni element, Co element and Mn element, and Li element (provided that the molar ratio (Li/X) of the Li element based on the total amount of the transition metal element (X) is from 1.1 to 1.7),wherein the aspect ratio of primary particles is from 2.5 to 10, andin an X-ray diffraction pattern, the ratio (I020/I003) of the integrated intensity (I020) of a peak of (020) plane assigned to a crystal structure with space group C2/m to the integrated intensity (I003) of a peak of (003) plane assigned to a crystal structure with space group R-3m is from 0.02 to 0.3.
摘要翻译：提供用于具有高放电容量和良好的循环耐久性的锂离子二次电池的正极中使用的正极活性物质。一种正极活性物质，其包含含有选自Ni元素，Co元素和Mn元素中的至少一种过渡金属元素（X）的锂复合氧化物和Li元素（条件是摩尔比（Li / 基于过渡金属元素（X）的总量，Li元素的X）为1.1〜1.7），其中一次粒子的纵横比为2.5〜10，在X射线衍射图中，分配给具有空间群C2 / m的晶体结构的（020）面的峰的积分强度（I020）与分配给晶体的（003）面的峰的积分强度（I003）的（I020 / I003）空间群R-3m的结构为0.02〜0.3。

4. 发明申请

US20160218364A1 CATHODE ACTIVE MATERIAL, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY 审中-公开
标题翻译：阴极活性材料，锂离子二次电池的正极和锂离子二次电池
公开(公告)号：US20160218364A1
公开(公告)日：2016-07-28
申请号：US14982344
申请日：2015-12-29
申请人： Asahi Glass Company, Limited
发明人： Tomohiro Sakai , Tsubasa Takasugi
IPC分类号： H01M4/505 , H01M10/0525
CPC分类号： H01M4/505 , C01G45/1228 , C01G51/42 , C01G53/42 , C01G53/50 , C01P2002/60 , C01P2002/72 , C01P2002/76 , C01P2004/51 , C01P2004/61 , C01P2004/82 , C01P2006/12 , C01P2006/40 , H01M4/525 , H01M10/0525
摘要： To provide a lithium rich cathode active material capable of obtaining a lithium ion secondary battery excellent in the discharge capacity and cycle characteristics; a positive electrode for such a lithium ion secondary battery; and such a lithium ion secondary battery. The cathode active material comprises a lithium-containing composite oxide, wherein the lithium-containing composite oxide is represented by aLi(Li1/3Mn2/3)O2·(1−a)LiMO2 (wherein M is at least one transition metal element selected from the group consisting of Ni, Co and Mn, and a is more than 0 and less than 1), and in an X-ray diffraction pattern of the lithium-containing composite oxide, the integral breadth of a peak of (020) plane assigned to a crystal structure with space group C2/m is at most 0.55 deg.
摘要翻译：提供能够获得放电容量和循环特性优异的锂离子二次电池的富锂正极活性物质; 这种锂离子二次电池的正极; 和这样的锂离子二次电池。正极活性物质包含含锂复合氧化物，其中，所述含锂复合氧化物由Li（Li1 / 3Mn2 / 3）O2·（1-a）LiMO2（其中M为选自以下的至少一种过渡金属元素由Ni，Co和Mn组成的组，a大于0且小于1），并且在含锂复合氧化物的X射线衍射图中，分配（020）面的峰的整体宽度到具有空间群C2 / m的晶体结构为至多0.55度。

5. 发明申请

US20150318538A1 PROCESS FOR PRODUCING CARBONATE COMPOUND AND CATHODE ACTIVE MATERIAL 有权
标题翻译：生产碳酸盐化合物和阴极活性材料的方法
公开(公告)号：US20150318538A1
公开(公告)日：2015-11-05
申请号：US14798565
申请日：2015-07-14
申请人： ASAHI GLASS COMPANY, LIMITED
发明人： Tomohiro Sakai , Tsubasa Takasugi , Takuya Teratani
IPC分类号： H01M4/131 , H01M4/505 , H01M10/0525 , C01G53/00 , H01M4/525
CPC分类号： C01G53/006 , C01G53/50 , C01P2002/50 , C01P2002/52 , C01P2004/03 , C01P2004/61 , C01P2006/12 , C01P2006/40 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/028
摘要： To provide a carbonate compound and a cathode active material, whereby a lithium ion secondary battery having excellent cycle characteristics can be obtained.A process for producing a carbonate compound, which comprises mixing a sulfate (A) comprising a sulfate comprising a sulfate of Mn and a sulfate of Ni, or a sulfate comprising a sulfate of Mn, a sulfate of Ni and a sulfate of Co, and a carbonate (B) which is at least one carbonate selected from the group consisting of sodium carbonate and potassium carbonate, in the form of aqueous solutions and controlling the proportion of Mn to the total of Ni, Co and Mn contained in the sulfate (A) to be higher than 65 mol % at the initiation of the mixing, to precipitate a carbonate compound having a proportion of Mn of from 33.3 to 65 mol %, a proportion of Ni of from 17.5 to 50 mol % and a proportion of Co of from 0 to 33.3 mol % to the total of Ni, Co and Mn in the total average composition. A process for producing a cathode active material, which comprises mixing the carbonate compound obtained by the above process and lithium carbonate, followed by firing at from 500 to 1,000° C.
摘要翻译：为了提供碳酸盐化合物和正极活性物质，可以得到具有优异的循环特性的锂离子二次电池。一种碳酸酯化合物的制造方法，其特征在于，将包含Mn的硫酸盐和Ni的硫酸盐的硫酸盐或含有Mn的硫酸盐的硫酸盐，Ni的硫酸盐和Co的硫酸盐组成的硫酸盐（A）和碳酸酯（B），其为水溶液形式的至少一种选自碳酸钠和碳酸钾的碳酸盐，并控制Mn与硫酸盐中所含的Ni，Co和Mn的总量的比例（A ）在混合开始时高于65mol％，使Mn的比例为33.3〜65mol％，Ni的比例为17.5〜50mol％，Co的比例为相对于总平均组成中的Ni，Co和Mn的总和为0〜33.3摩尔％。一种正极活性物质的制造方法，其特征在于，将上述方法得到的碳酸酯化合物与碳酸锂混合，然后在500〜1000℃下烧成。

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