公开(公告)号：US20170288192A1

公开(公告)日：2017-10-05

申请号：US15475167

申请日：2017-03-31

Applicant: Ningde Amperex Technology Limited

Inventor： Shitong Chen ,  Xinghua Tao ,  Shengwu Zhang ,  Wenqiang Cheng

IPC: H01M2/16 ,  H01M10/0587 ,  H01M10/0525

CPC classification number: H01M2/1653 ,  H01M2/1646 ,  H01M2/1686 ,  H01M10/0525 ,  H01M10/0587

Abstract: The present invention provides a separator for a lithium ion battery. The separator includes a substrate, an inorganic coating on at least one surface of the substrate, and an organic coating on at least one surface of the inorganic coating, wherein the coating density of the organic coating is 0.1 mg/1540.25 mm2˜10 mg/1540.25 mm2. Compared with the prior art, the separator of the present invention can improve the deformation of the lithium ion battery and enhance the expansion force that the lithium ion battery can endure, thereby improving the cycle life of the lithium ion battery. In addition, the present invention also provides a lithium ion battery having the separator of the present invention.

公开(公告)号：US09806330B2

公开(公告)日：2017-10-31

申请号：US14728636

申请日：2015-06-02

Applicant: Ningde Amperex Technology Limited

Inventor： Baiqing Li ,  Shengwu Zhang ,  Xinghua Tao ,  Baiqing Zhang

IPC: H01M4/00 ,  H01M4/134 ,  H01M4/38 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/62 ,  H01M10/052

CPC classification number: H01M4/134 ,  H01M4/0404 ,  H01M4/0483 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/382 ,  H01M4/62 ,  H01M10/052

Abstract: The present disclosure provides a lithium-rich electrode plate of a lithium-ion battery and a preparation method thereof. The preparation method of the lithium-rich electrode plate of the lithium-ion battery comprises steps of: (1) in a protective gas environment, melting a lithium ingot to obtain a melting lithium; (2) in a vacuum environment, heating and drying ceramic particles to obtain dried and anhydrous ceramic particles; (3) in a protective gas environment, adding the dried and anhydrous ceramic particles into the melting lithium, stirring to make them uniformly mixed to obtain a modified melting lithium; (4) in a protective gas environment, uniformly coating the modified melting lithium on a surface of an electrode plate to be lithium rich to form a lithium-rich layer, which is followed by cooling to room temperature to obtain a lithium-rich electrode plate of a lithium-ion battery. The lithium-rich electrode plate is prepared according to the preparation method.

公开(公告)号：US20150357628A1

公开(公告)日：2015-12-10

申请号：US14728636

申请日：2015-06-02

Applicant: Ningde Amperex Technology Limited

Inventor： Baiqing LI ,  Shengwu Zhang ,  Xinghua Tao ,  Baiqing Zhang

IPC: H01M4/134 ,  H01M4/04 ,  H01M4/38

CPC classification number: H01M4/134 ,  H01M4/0404 ,  H01M4/0483 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/382 ,  H01M4/62 ,  H01M10/052

Abstract: The present disclosure provides a lithium-rich electrode plate of a lithium-ion battery and a preparation method thereof. The preparation method of the lithium-rich electrode plate of the lithium-ion battery comprises steps of: (1) in a protective gas environment, melting a lithium ingot to obtain a melting lithium; (2) in a vacuum environment, heating and drying ceramic particles to obtain dried and anhydrous ceramic particles; (3) in a protective gas environment, adding the dried and anhydrous ceramic particles into the melting lithium, stirring to make them uniformly mixed to obtain a modified melting lithium; (4) in a protective gas environment, uniformly coating the modified melting lithium on a surface of an electrode plate to be lithium rich to form a lithium-rich layer, which is followed by cooling to room temperature to obtain a lithium-rich electrode plate of a lithium-ion battery. The lithium-rich electrode plate is prepared according to the preparation method.

Abstract translation: 本公开内容提供了一种锂离子电池的富锂电极板及其制备方法。 锂离子电池的富锂电极板的制备方法包括以下步骤：（1）在保护气体环境中，熔解锂锭以获得熔融的锂; （2）在真空环境下，加热干燥陶瓷颗粒，得到干燥无水陶瓷颗粒; （3）在保护气体环境下，将干燥无水陶瓷颗粒加入熔融锂中，搅拌均匀混合，得到改性熔融锂; （4）在保护气体环境中，在电极板的表面上均匀地涂覆锂化锂，形成富锂层，然后冷却至室温，得到富锂电极板 的锂离子电池。 根据制备方法制备富锂电极板。

公开(公告)号：US20150056491A1

公开(公告)日：2015-02-26

申请号：US14446236

申请日：2014-07-29

Applicant: Dongguan Amperex Technology Limited ,  Ningde Amperex Technology Limited

Inventor： Junhua ZHAO ,  Shengwu Zhang ,  Fenmin Cai ,  Shenglong Wang ,  Baiqing Zhang

IPC: H01M2/16 ,  H01M10/0525 ,  H01M2/14

CPC classification number: H01M2/166 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/0525

Abstract: The present disclosure provides an organic/inorganic composite porous separator and a preparation method thereof and an electrochemical device. The organic/inorganic composite porous separator comprises: a porous substrate; and an organic/inorganic composite porous coating coated on at least one surface of the porous substrate; the organic/inorganic composite porous coating comprises inorganic particles, an adhesive and organic particles with at least two swelling degrees, and the organic particles are swollen by a plasticizer. A preparation method of an organic/inorganic composite porous separator is used for preparing the previous organic/inorganic composite porous separator. An electrochemical device comprises the organic/inorganic composite porous separator. The separator can form an excellent interface, thereby reducing the risk of organic particles blocking micro pores, helping to improve the permeability of the separator, and improving the conductivity of the separator.

Abstract translation: 本公开内容提供了一种有机/无机复合多孔隔膜及其制备方法和电化学装置。 有机/无机复合多孔隔板包括：多孔基材; 以及涂覆在所述多孔基材的至少一个表面上的有机/无机复合多孔涂层; 有机/无机复合多孔涂层包括无机颗粒，粘合剂和具有至少两个溶胀度的有机颗粒，并且有机颗粒被增塑剂溶胀。 使用有机/无机复合多孔隔膜的制备方法来制备先前的有机/无机复合多孔隔膜。 电化学装置包括有机/无机复合多孔隔板。 隔板可以形成优良的界面，从而降低有机颗粒阻塞微孔的风险，有助于提高隔膜的渗透性，并提高隔膜的导电性。