公开(公告)号：US20150200394A1

公开(公告)日：2015-07-16

申请号：US14663033

申请日：2015-03-19

Applicant: Asahi Glass Company, Limited

Inventor： Tomohiro SAKAI ,  Kentaro TSUNOZAKI ,  Michinori SUEHARA

IPC: H01M4/505 ,  H01M4/04 ,  H01M4/525

CPC classification number: H01M4/505 ,  H01M4/0471 ,  H01M4/0497 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028

Abstract: To provide a cathode active material having excellent cycle characteristics and a small decrease in the discharge voltage, and a process for its production.A process for producing a cathode active material, which comprises a step of mixing at least one sulfate (A) selected from the group consisting of a sulfate of Ni, a sulfate of Co and a sulfate of Mn with at least one carbonate (B) selected from the group consisting of sodium carbonate and potassium carbonate in an aqueous solution state to obtain a coprecipitated compound, a step of mixing the coprecipitated compound with an aqueous phosphate solution, a step of volatilizing a water content from the mixture of the coprecipitated compound and the aqueous phosphate solution to obtain a precursor compound, and a step of mixing the precursor compound with lithium carbonate and firing the mixture at from 500 to 1000° C.; and a cathode active material obtainable by the production process, which comprises Li, at least one transition metal element (X) selected from the group consisting of Ni, Co and Mn, and P, wherein the average coefficient of variation (CV value) of the calculated peak intensity ratio (Ip/Ix) of P to the transition metal element (X) is from 0 to 20% as determined by a method for measuring coefficient of variation.

Abstract translation: 提供具有优异的循环特性和放电电压的小的阴极活性材料及其制造方法。 一种正极活性物质的制造方法，其特征在于，包括将至少一种选自Ni的硫酸盐，Co的硫酸盐和Mn的硫酸盐的至少一种硫酸盐（A）与至少一种碳酸盐（B）混合的工序， 选自碳酸钠和碳酸钾的水溶液状态，得到共沉淀化合物，将共沉淀化合物与磷酸盐水溶液混合的步骤，使来自共沉淀化合物和 磷酸水溶液，得到前体化合物，将前体化合物与碳酸锂混合并在500〜1000℃下烧成该混合物的工序。 以及通过该制造方法得到的正极活性物质，其包含Li，选自Ni，Co，Mn中的至少一种以上的过渡金属元素（X）和P，其中，平均变异系数（CV值）为 通过测定变异系数的方法测定，P与过渡金属元素（X）的计算出的峰强度比（Ip / Ix）为0〜20％。

公开(公告)号：US20170197875A1

公开(公告)日：2017-07-13

申请号：US15398148

申请日：2017-01-04

Applicant: ASAHI GLASS COMPANY, LIMITED

Inventor： Kensuke FUJII ,  Michinori SUEHARA ,  Daisuke KOBAYASHI

IPC: C03C17/42 ,  C23C14/34 ,  C23C14/10

CPC classification number: C03C17/42 ,  C03C2217/734 ,  C03C2217/76 ,  C03C2217/77 ,  C03C2218/155 ,  C03C2218/31 ,  C23C14/10 ,  C23C14/34 ,  G02B1/115 ,  G02B27/0006

Abstract: A glass substrate with an antifouling layer includes: a glass substrate which has a pair of principal surfaces facing to each other; a cohesive layer provided on the side of one principal surface of the glass substrate; and an antifouling layer provided on a surface of the cohesive layer, wherein the cohesive layer has a layer, the layer is in contact with the antifouling layer, contains mainly a silicon oxide, and contains carbon atoms at a concentration of 5×1018 atoms/cm3 to 5×1019 atoms/cm3.