公开(公告)号：US20180287199A1

公开(公告)日：2018-10-04

申请号：US15922095

申请日：2018-03-15

Applicant: TDK CORPORATION

Inventor： Junpei SHITABA ,  Hideaki SEKI ,  Masahiro TSUCHIYA

IPC: H01M10/0525 ,  H01M2/16 ,  H01M4/62 ,  H01M4/66 ,  H01M4/52

Abstract: A positive electrode active material for a lithium ion secondary battery is lithium vanadium phosphate represented by a following composition expression (1) and in which a peak intensity ((002)int/(201)int) of a (002) plane normalized with respect to a peak intensity of a (201) plane and a peak intensity ((102)int/(201)int) of a (102) plane normalized with respect to a peak intensity of the (201) plane in an X-ray diffraction pattern satisfy 0.35≤(002)int/(201)int≤0.53 and 0.46≤(102)int/(201)int≤0.63, respectively, LixVOPO4  (1).

公开(公告)号：US20170062811A1

公开(公告)日：2017-03-02

申请号：US14960964

申请日：2015-12-07

Applicant: TDK CORPORATION

Inventor： Masahiro TSUCHIYA ,  Tomohiko HASEGAWA ,  Yuji YAMAMOTO ,  Kazuma AKIMOTO

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38

CPC classification number: H01M4/366 ,  H01M4/38 ,  H01M4/382 ,  H01M4/62 ,  H01M8/0637 ,  H01M10/0525

Abstract: Stabilized lithium powder according to an embodiment of this disclosure contains lithium particles and transition metal. Each lithium particle has a stabilized film on a surface thereof; the stabilized film contains an inorganic compound; and main transition metal, which is contained the most in the transition metal, is contained by 0.5×10−3 wt % or more and 11.5×10−3 wt % or less.

Abstract translation: 根据本公开实施方案的稳定的锂粉末含有锂颗粒和过渡金属。 每个锂颗粒在其表面上具有稳定的膜; 稳定膜含有无机化合物; 在过渡金属中含有最多的主过渡金属的含量为0.5×10 -3重量％以上且11.5×10 -3重量％以下。

公开(公告)号：US20160099467A1

公开(公告)日：2016-04-07

申请号：US14874983

申请日：2015-10-05

Applicant: TDK CORPORATION

Inventor： Tomohiko HASEGAWA ,  Masahiro TSUCHIYA ,  Atsushi SANO

IPC: H01M4/38 ,  H01M10/0525

CPC classification number: H01M4/382 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/62 ,  H01M10/0525 ,  Y02T10/7011

Abstract: Stabilized lithium powder according to an embodiment of this disclosure includes powder particles satisfying a relation of C≦0.90, where C represents average circularity of the powder particles. And a lithium secondary battery according to an embodiment of this disclosure comprises a negative electrode doped with lithium from the stabilized lithium powder for a lithium ion second battery according to an embodiment of this disclosure, a positive electrode, and an electrolyte.

Abstract translation: 根据本发明的一个实施方案的稳定的锂粉末包括满足C＆lt; NlE; 0.90的关系的粉末颗粒，其中C代表粉末颗粒的平均圆形度。 根据本公开的实施方式的锂二次电池包括从根据本公开的实施方案的锂离子二次电池的稳定化锂粉末中掺入锂的负极，正极和电解质。

公开(公告)号：US20160099465A1

公开(公告)日：2016-04-07

申请号：US14874875

申请日：2015-10-05

Applicant: TDK CORPORATION

Inventor： Masahiro TSUCHIYA ,  Tomohiko HASEGAWA ,  Kazuya KAI ,  Atsushi SANO

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/48

CPC classification number: H01M4/366 ,  H01M4/382 ,  H01M4/483 ,  H01M10/052 ,  H01M2004/027 ,  Y02T10/7011

Abstract: Stabilized lithium powder according to an embodiment of this disclosure includes lithium particles. Each lithium particle includes an inorganic compound on a surface thereof, the inorganic compound contains lithium hydroxide, and the lithium hydroxide is contained by 2.0 wt % or less relative to the entire stabilized lithium powder.

Abstract translation: 根据本公开实施方案的稳定的锂粉末包括锂颗粒。 每个锂颗粒在其表面上包括无机化合物，无机化合物含有氢氧化锂，相对于整个稳定的锂粉末，氢氧化锂的含量为2.0重量％以下。