公开(公告)号：US20210296637A1

公开(公告)日：2021-09-23

申请号：US16321593

申请日：2017-07-25

Applicant: BYD COMPANY LIMITED

Inventor： Jing XIE ,  Zizhu GUO ,  Yongjun MA ,  Guangui YI ,  Wei SONG ,  Biao LI

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/02

Abstract: The present disclosure provides a negative electrode material and a preparation method thereof, a negative electrode and an all-solid-state lithium-ion battery. The negative electrode material includes a negative electrode active substance and a coating layer on the surface of the negative electrode active substance, the coating layer including a polymer electrolyte and a sulfide solid electrolyte.

公开(公告)号：US20160359193A1

公开(公告)日：2016-12-08

申请号：US15242228

申请日：2016-08-19

Applicant: BYD COMPANY LIMITED

Inventor： Guangui YI ,  Yongjun MA ,  Zizhu GUO

IPC: H01M10/0562 ,  C01B35/14 ,  C01B25/45 ,  H01M10/0525 ,  B28B3/00

CPC classification number: H01M10/0562 ,  B28B3/00 ,  C01B25/45 ,  C01B35/143 ,  C04B35/447 ,  C04B35/62805 ,  C04B35/62886 ,  C04B2235/3203 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3286 ,  C04B2235/3409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/602 ,  C04B2235/6562 ,  H01M10/0525 ,  H01M2300/0068 ,  H01M2300/0094 ,  Y02T10/7011

Abstract: A solid electrolyte contains an internal component and an external component coated on a surface of the internal component. The internal component is represented by a formula Li1+xMxZr2−x(PO4)3, M is one or more elements selected from a group consisting of Al, La, Cr, Ga, Y, and In, and 0.05≦x≦0.4. The external component contains a plastic deformable material and has a conductivity of about 10−7 S/cm to about 10−5S/cm. A method of preparing the solid electrolyte and a lithium ion battery including the solid electrolyte are also provided.

Abstract translation: 固体电解质包含内部组分和涂覆在内部组件的表面上的外部组分。 内部成分由式Li1 + xMxZr2-x（PO4）3表示，M是选自Al，La，Cr，Ga，Y和In中的一种或多种元素，0.05≤x≤0.4。 外部组件包含塑料可变形材料，并且具有约10-7S / cm至约10-5S / cm的导电率。 还提供了制备固体电解质的方法和包括固体电解质的锂离子电池。