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：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.

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：US10340551B2

公开(公告)日：2019-07-02

申请号：US15501348

申请日：2015-08-11

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Masaru Yao ,  Hikaru Sano ,  Hisanori Ando ,  Tetsu Kiyobayashi

IPC: H01M8/06 ,  H01M10/0568 ,  H01M4/485 ,  H01M4/583 ,  H01M4/60 ,  H01M10/05

Abstract: A rocking-chair nonaqueous secondary battery, which uses an ion other than monatomic ions as a charge carrier, and in which the ion moves in and out of both the positive electrode and the negative electrode, can be provided by using a nonaqueous secondary battery electrolyte comprising a salt containing a charge carrier comprising a molecular ion. The nonaqueous secondary battery further comprises a positive electrode containing a positive electrode active material, and a negative electrode containing a negative electrode active material, wherein the positive electrode active material and the negative electrode active material are both materials that allow doping and dedoping of molecular anions (e.g., conductive polymers, organic radical polymers, polymers having a ferrocene skeleton, conductive carbon materials, or organic sulfur compounds), or the positive electrode active material and the negative electrode active material are both materials that allow doping and dedoping of molecular cations (e.g., inorganic active materials, redox active molecules having a carbonyl group, redox active molecules having an imine skeleton, or redox active molecules containing a sulfur atom).

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：US20170229738A1

公开(公告)日：2017-08-10

申请号：US15501348

申请日：2015-08-11

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Masaru Yao ,  Hikaru Sano ,  Hisanori Ando ,  Tetsu Kiyobayashi

IPC: H01M10/0568 ,  H01M4/583 ,  H01M4/485 ,  H01M4/60

CPC classification number: H01M10/0568 ,  H01M4/485 ,  H01M4/583 ,  H01M4/60 ,  H01M4/602 ,  H01M10/05

Abstract: A rocking-chair nonaqueous secondary battery, which uses an ion other than monatomic ions as a charge carrier, and in which the ion moves in and out of both the positive electrode and the negative electrode, can be provided by using a nonaqueous secondary battery electrolyte comprising a salt containing a charge carrier comprising a molecular ion. The nonaqueous secondary battery further comprises a positive electrode containing a positive electrode active material, and a negative electrode containing a negative electrode active material, wherein the positive electrode active material and the negative electrode active material are both materials that allow doping and dedoping of molecular anions (e.g., conductive polymers, organic radical polymers, polymers having a ferrocene skeleton, conductive carbon materials, or organic sulfur compounds), or the positive electrode active material and the negative electrode active material are both materials that allow doping and dedoping of molecular cations (e.g., inorganic active materials, redox active molecules having a carbonyl group, redox active molecules having an imine skeleton, or redox active molecules containing a sulfur atom).