Patents by Inventor Bryan T. YONEMOTO

Bryan T. YONEMOTO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11978887
    Abstract: A method of preparing cathode particles using a co-precipitation reaction in a reactor is disclosed. A feed stream (a) containing metal cations is fed into the reactor, and a feed stream (b) containing anions is fed into the reactor, wherein a ratio of the metal cations in the feed stream (a) is continuously changed from A1 at time t1 to A2 at time t2. The feed stream (a) and the feed stream (b) are contacted in the reactor to form precipitated precursor particles, and at least one transition metal component in the particle has a non-linear continuous concentration gradient profile over at least a portion along a thickness direction of the particle.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 7, 2024
    Assignee: MICROVAST ADVANCED MATERIALS INC.
    Inventors: Bryan T. Yonemoto, Huijie Guo, Xiao Zhang, Zhifeng Zhang, Xuelei Sun, Tianshu Deng
  • Patent number: 11145858
    Abstract: The present disclosure provides a cathode active material and a lithium ion electrochemical system including the same. A general formula of the cathode active material is as follows: z{xLi2MnO3*(1?x)LiRO2}*(1?z) LiaR?1-aOy, herein R and R? independently include one or more metal ions, an oxidation valence state of the R is 3+, and an oxidation valence state of the R? is 2+, herein, 0?x?0.25, 0<a?0.75, 0.625?y?1, 0.75?z<1.
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: October 12, 2021
    Assignee: Microvast Power Systems Co., Ltd.
    Inventors: Bryan T. Yonemoto, Karima Lasri, Xiao Zhang
  • Publication number: 20210159487
    Abstract: The present disclosure provides a cathode active material and a lithium ion electrochemical system including the same. A general formula of the cathode active material is as follows: z{xLi2MnO3*(1?x)LiRO2}*(1?z) LiaR?1-aOy, herein R and R? independently include one or more metal ions, an oxidation valence state of the R is 3+, and an oxidation valence state of the R? is 2+, herein, 0?x?0.25, 0<a?0.75, 0.625?y?1, 0.75?z<1.
    Type: Application
    Filed: January 19, 2020
    Publication date: May 27, 2021
    Inventors: Bryan T. Yonemoto, Karima Lasri, Xiao ZHANG
  • Patent number: 10797363
    Abstract: Provided is a method for recycling and refreshing a cathode material, a refreshed cathode material and a lithium ion battery. The method for recycling and refreshing the cathode material includes: 1) a cathode material recycled from a waste battery is mixed with a manganiferous salt solution; 2) an alkali aqueous solution is added to the mixture to react to obtain a manganese hydroxide coating cathode material; and 3) the manganese hydroxide coating cathode material is sintered with a lithium resource to obtain a refreshed cathode material. The refreshed cathode material has no obvious impurity phase and has good crystallinity, high initial charge-discharge efficiency and good cycling performance.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: October 6, 2020
    Assignee: Microvast Power Systems Co., Ltd.
    Inventors: Wenjuan Liu Mattis, Bryan T. Yonemoto, Yuehui Yin, Xiangchao Kong, Xuelei Sun
  • Publication number: 20200203718
    Abstract: A method of preparing cathode particles using a co-precipitation reaction in a reactor is disclosed. A feed stream (a) containing metal cations is fed into the reactor, and a feed stream (b) containing anions is fed into the reactor, wherein a ratio of the metal cations in the feed stream (a) is continuously changed from A1 at time t1 to A2 at time t2. The feed stream (a) and the feed stream (b) are contacted in the reactor to form precipitated precursor particles, and at least one transition metal component in the particle has a non-linear continuous concentration gradient profile over at least a portion along a thickness direction of the particle.
    Type: Application
    Filed: August 30, 2018
    Publication date: June 25, 2020
    Inventors: BRYAN T. YONEMOTO, HUIJIE GUO, XIAO ZHANG, ZHIFENG ZHANG, XUELEI SUN, TIANSHU DENG
  • Patent number: 10305103
    Abstract: A structurally inhomogeneous lithium metal oxide material having the Formula (I): y[xLi2MO3•(1-x)LiM?O2]•(1-y)Li1+dM?2?dO4; wherein 0?x?1; 0<y<1; 0?d?0.33; and wherein the Li1+dM?2?dO4 component comprises a spinel structure, and each of the Li2MO3 and the LiM?2 components thereof comprise layered structures. Each of M, M?, and M? independently comprises one or more metal ions. The composition of the material of Formula (I) varies across the electrode particles by changing at least one of x, y, d, M, M? and M?. Electrodes, cells and batteries comprising the lithium metal oxide material are also described.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 28, 2019
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Michael M. Thackeray, Jason Croy, Khalil Amine, Bryan T. Yonemoto, Joong Sun Park
  • Publication number: 20190131673
    Abstract: Provided is a method for recycling and refreshing a cathode material, a refreshed cathode material and a lithium ion battery. The method for recycling and refreshing the cathode material includes: 1) a cathode material recycled from a waste battery is mixed with a manganiferous salt solution; 2) an alkali aqueous solution is added to the mixture to react to obtain a manganese hydroxide coating cathode material; and 3) the manganese hydroxide coating cathode material is sintered with a lithium resource to obtain a refreshed cathode material. The refreshed cathode material has no obvious impurity phase and has good crystallinity, high initial charge-discharge efficiency and good cycling performance.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Wenjuan Liu Mattis, BRYAN T. YONEMOTO, Yuehui YIN, Xiangchao KONG, Xuelei SUN
  • Publication number: 20170047587
    Abstract: A structurally inhomogeneous lithium metal oxide material having the Formula (I): Y[xLi2MO3•(1-x)LiM?O2]•(1-y)Li1+dM?2?dO4; wherein 0?x?1; 0<y<1; 0?d?0.33; and wherein the Li1+dM?2?dO4 component comprises a spinel structure, and each of the Li2MO3 and the LiM?2 components thereof comprise layered structures. Each of M, M?, and M? independently comprises one or more metal ions. The composition of the material of Formula (I) varies across the electrode particles by changing at least one of x, y, d, M, M? and M?. Electrodes, cells and batteries comprising the lithium metal oxide material are also described.
    Type: Application
    Filed: August 9, 2016
    Publication date: February 16, 2017
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Michael M. THACKERAY, Jason CROY, Khalil AMINE, Bryan T. YONEMOTO, Joong Sun PARK