公开(公告)号：WO2019032514A1

公开(公告)日：2019-02-14

申请号：PCT/US2018/045508

申请日：2018-08-07

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  THOMPSON, Travis ,  TAYLOR, Nathan

IPC: H01M4/62

Abstract: Disclosed are electrochemical devices, such as lithium ion battery electrodes, lithium ion conducting solid-state electrolytes, and solid-state lithium ion batteries including these electrodes and solid-state electrolytes. Also disclosed are methods for making such electrochemical devices. Also disclosed are composite electrodes for solid state electrochemical devices. The composite electrodes include one or more separate phases within the electrode that provide electronic and ionic conduction pathways in the electrode active material phase.

公开(公告)号：WO2018068034A1

公开(公告)日：2018-04-12

申请号：PCT/US2017/055704

申请日：2017-10-09

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  THOMPSON, Travis ,  TAYLOR, Nathan

IPC: H01M2/26 ,  H01M6/40 ,  H01M10/052 ,  H01M10/056

Abstract: The present disclosure relates to a method for forming solid-state electrolytes, electrodes, current collectors, and/or conductive additives used in solid-state batteries. In one version, the method includes depositing a stabilization coating on a powdered electrolyte material, or a powdered electrode material, or a powdered conductive additive material and forming a slurry comprising the coated material. The slurry is then cast on a surface to form a layer, and the layer is sintered to form a solid state electrolyte, or an electrode, or an electrode having the conductive additive.

Abstract translation: 本公开涉及用于形成在固态电池中使用的固态电解质，电极，集电器和/或导电添加剂的方法。 在一个版本中，该方法包括在粉末状电解质材料，粉末状电极材料或粉末状导电添加剂材料上沉积稳定涂层，并形成包含该涂覆材料的浆液。 然后将浆液浇铸在表面上以形成一层，并将该层烧结以形成固态电解质，或电极或具有导电添加剂的电极。

公开(公告)号：WO2018226826A1

公开(公告)日：2018-12-13

申请号：PCT/US2018/036254

申请日：2018-06-06

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  THOMPSON, Travis ,  SHARAFI, Asma ,  TAYLOR, Nathan ,  DASGUPTA, Neil, P. ,  KAZYAK, Eric

IPC: H01M4/1395 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/62

Abstract: A method is disclosed for suppressing propagation of a metal in a solid state electrolyte during cycling of an electrochemical device including the solid state electrolyte and an electrode comprising the metal. One method comprises forming the solid state electrolyte such that the solid state electrolyte has a structure comprising a plurality of grains of a metal-ion conductive material and a grain boundary phase located at some or all of grain boundaries between the grains, wherein the grain boundary phase suppresses propagation of the metal in the solid state electrolyte during cycling. Another method comprises forming the solid state electrolyte such that the solid state electrolyte is a single crystal.

公开(公告)号：WO2021155346A2

公开(公告)日：2021-08-05

申请号：PCT/US2021/016012

申请日：2021-02-01

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  WANG, Michael ,  TAYLOR, Nathan

IPC: B05D1/04 ,  B05D1/26 ,  B05D1/28 ,  B29C43/006 ,  B29D7/01 ,  B29K2001/00 ,  B29K2003/00 ,  B29K2021/00 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2025/08 ,  B29K2027/06 ,  B29K2027/16 ,  B29K2027/18 ,  B29K2029/00 ,  B29K2029/04 ,  B29K2031/04 ,  B29K2033/08 ,  B29K2033/12 ,  B29K2033/20 ,  B29K2039/06 ,  B29K2071/02 ,  B29L2007/00

Abstract: A method of and apparatus for sinter forging a precursor powder to form a film may reduce or eliminate the stress in the film and may facilitate processing of continuous length of films such as ceramic films for use in batteries. The precursor powder can be provided on a substrate and is simultaneously heated and pressed in a pressing direction parallel to a thickness of the film so as to sinter and densify the precursor powder to form the film in a sinter forging area. Notably, in a plane perpendicular to the pressing direction, there are no lateral constraints on the sinter forging area or the material received therein.

公开(公告)号：WO2019094359A1

公开(公告)日：2019-05-16

申请号：PCT/US2018/059358

申请日：2018-11-06

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  THOMPSON, Travis ,  TAYLOR, Nathan

IPC: H01M10/0562 ,  C04B35/00 ,  C04B35/50 ,  C04B35/51 ,  H01M10/00 ,  H01M10/05

Abstract: Disclosed are electrochemical devices, such as lithium ion battery electrodes, lithium ion conducting solid-state electrolytes, and solid-state lithium ion batteries including these electrodes and solid-state electrolytes. Also disclosed are composite electrodes for solid state electrochemical devices. The composite electrodes include one or more separate phases within the electrode that provide electronic and ionic conduction pathways in the electrode active material phase. A method for forming a composite electrode for an electrochemical device is also disclosed. One example method comprises (a) forming a mixture comprising (i) a lithium host material, and (ii) a solid-state conductive material comprising a ceramic material having a crystal structure and a dopant in the crystal structure; and (b) sintering the mixture, wherein the dopant is selected such that the solid-state conductive material retains the crystal structure during sintering with the lithium host material.

公开(公告)号：WO2018081224A1

公开(公告)日：2018-05-03

申请号：PCT/US2017/058222

申请日：2017-10-25

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  THOMPSON, Travis ,  TAYLOR, Nathan

IPC: H01M4/525 ,  H01M4/62 ,  H01M4/505 ,  H01M4/04

CPC classification number: H01M4/1395 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/38 ,  H01M4/382 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/581 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/62 ,  H01M4/667 ,  H01M10/052 ,  H01M10/0562 ,  H01M2004/021 ,  H01M2300/0037 ,  H01M2300/0071 ,  Y02T10/7011

Abstract: Disclosed are electrochemical devices and methods for making electrochemical devices such as metal infiltrated electrodes for solid state lithium ion and lithium metal batteries. In one method for forming an electrode, a metal is infiltrated into the pore space of the active material of the electrode providing improved electronic conductivity to the electrode. The electrode may also include a solid-state ion conducting material providing improved ion conductivity to the electrode. Before infiltration of the metal, a stabilization coating may be applied to the active material and/or the solid-state ion conducting material to the stabilize electrode interfaces by slowing, but not eliminating, the chemical reactions that occur at elevated temperatures during sintering of the active material and/or the solid-state ion conducting material forming the electrode.

Abstract translation: 公开了用于制造电化学装置例如用于固态锂离子和锂金属电池的金属渗透电极的电化学装置和方法。 在用于形成电极的一种方法中，金属渗入到电极的活性材料的孔隙中，从而为电极提供改善的电子导电性。 电极还可以包括向电极提供改善的离子传导性的固态离子传导材料。 在金属渗透之前，通过减缓但不消除在烧结过程中在高温下发生的化学反应，可以将稳定涂层施加到活性材料和/或固态离子传导材料上以稳定电极界面 活性材料和/或形成电极的固态离子传导材料。

公开(公告)号：WO2019139966A1

公开(公告)日：2019-07-18

申请号：PCT/US2019/012871

申请日：2019-01-09

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  THOMPSON, Travis ,  TAYLOR, Nathan

IPC: H01M4/70 ,  H01M4/64 ,  H01M4/66

Abstract: An article for forming an electrochemical device is disclosed. The article comprises a metallic current collector clad with an ion conducting solid-electrolyte material such that intimate contact between the current collector and the ion conducting solid-electrolyte material is made. A lithium metal anode can be formed in situ between the current collector clad and the ion conducting solid-electrolyte material from lithium ions contained within a cathode material that is placed in contact with the ion conducting solid-electrolyte material. A bipolar electrochemical cell can be constructed from the article.

公开(公告)号：WO2018184010A1

公开(公告)日：2018-10-04

申请号：PCT/US2018/025697

申请日：2018-04-02

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： SAKAMOTO, Jeffrey ,  THOMPSON, Travis ,  TAYLOR, Nathan

IPC: H01M8/0228 ,  H01M10/0562 ,  H01M10/0565

Abstract: Disclosed are electrochemical devices, such as lithium battery electrodes, lithium ion conducting solid-state electrolytes, and solid-state lithium metal batteries including these electrodes and solid-state electrolytes. In one disclosed method, a solid state electrolyte material including a precursor layer having a first electronic conductivity is provided; and the precursor layer on the solid state electrolyte material is reduced to an interfacial layer having a second electronic conductivity greater than the first electronic conductivity. Also disclosed is a method of forming a solid state electrolyte for an electrochemical device including an anode comprising an electrochemically active metal, wherein the method comprises providing a solid state electrolyte material, and depositing an interfacial layer comprising a first metal on the surface of the solid state electrolyte material, wherein the electrochemically active metal does not form an alloy with the first metal during cycling or formation of the electrochemical device.