公开(公告)号：US10862120B2

公开(公告)日：2020-12-08

申请号：US15780472

申请日：2016-12-07

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Titus Nyamwaro Masese ,  Masahiro Shikano ,  Hikari Sakaebe ,  Hiroshi Senoh ,  Hikaru Sano

IPC: H01B1/08 ,  H01M4/00 ,  H01M4/525 ,  H01M4/131 ,  H01M4/505 ,  H01M10/054 ,  C01G49/00 ,  H01M4/485 ,  C01G3/00 ,  C01G45/12 ,  H01M4/62 ,  H01M4/02

Abstract: By using a potassium ion secondary battery positive electrode active material comprising a potassium compound represented by general formula (1): KnMOm, wherein M is copper or iron, n is 0.5 to 3.5, and m is 1.5 to 2.5, provided is a potassium ion secondary battery positive electrode active material having higher theoretical discharge capacity and higher effective capacity than a potassium secondary battery using Prussian blue as a positive electrode active material.

公开(公告)号：US20190067696A1

公开(公告)日：2019-02-28

申请号：US15781254

申请日：2016-12-07

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Titus Nyamwaro Masese ,  Masahiro Shikano ,  Hikari Sakaebe ,  Hiroshi Senoh ,  Hikaru Sano

IPC: H01M4/58 ,  C01B33/32 ,  C01G49/00 ,  C01G51/00 ,  C01G45/12 ,  C01G53/00 ,  H01M4/525 ,  H01M4/505 ,  H01M4/136 ,  H01M4/131 ,  H01M4/62 ,  H01M10/054

Abstract: Provided is a material that can be used as a potassium secondary battery positive electrode active material (particularly a potassium ion secondary battery positive electrode active material), other than Prussian blue, by using a potassium compound and a potassium ion secondary battery positive electrode active material comprising the potassium compound, the potassium compound being represented by general formula (1): KnAkBOm, wherein A is a positive divalent element in groups 7 to 11 of the periodic table; B is positive tetravalent silicon, germanium, titanium or manganese, excluding a case in which A is manganese and B is titanium, and a case in which A is cobalt and B is silicon; n is 1.5 to 2.5; and m is 3.5 to 4.5.

公开(公告)号：US20190067692A1

公开(公告)日：2019-02-28

申请号：US15780472

申请日：2016-12-07

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Titus Nyamwaro Masese ,  Masahiro Shikano ,  Hikari Sakaebe ,  Hiroshi Senoh ,  Hikaru Sano

IPC: H01M4/525 ,  C01G3/00 ,  C01G49/00 ,  C01G45/12 ,  H01M4/505 ,  H01M4/131 ,  H01M4/62 ,  H01M10/054

Abstract: By using a potassium ion secondary battery positive electrode active material comprising a potassium compound represented by general formula (1): KnMm, wherein M is copper or iron, n is 0.5 to 3.5, and m is 1.5 to 2.5, provided is a potassium ion secondary battery positive electrode active material having higher theoretical discharge capacity and higher effective capacity than a potassium secondary battery using Prussian blue as a positive electrode active material.

公开(公告)号：US10811684B2

公开(公告)日：2020-10-20

申请号：US15781254

申请日：2016-12-07

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Titus Nyamwaro Masese ,  Masahiro Shikano ,  Hikari Sakaebe ,  Hiroshi Senoh ,  Hikaru Sano

IPC: H01B1/08 ,  H01M4/00 ,  H01M4/58 ,  C01B33/32 ,  C01G49/00 ,  C01G53/00 ,  H01M4/485 ,  C01G45/12 ,  H01M4/62 ,  H01M4/136 ,  C01G51/00 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/054 ,  C01B33/20 ,  H01M4/02

Abstract: Provided is a material that can be used as a potassium secondary battery positive electrode active material (particularly a potassium ion secondary battery positive electrode active material), other than Prussian blue, by using a potassium compound and a potassium ion secondary battery positive electrode active material comprising the potassium compound, the potassium compound being represented by general formula (1): KnAkBOm, wherein A is a positive divalent element in groups 7 to 11 of the periodic table; B is positive tetravalent silicon, germanium, titanium or manganese, excluding a case in which A is manganese and B is titanium, and a case in which A is cobalt and B is silicon; n is 1.5 to 2.5; and m is 3.5 to 4.5.