公开(公告)号：US20140272562A1

公开(公告)日：2014-09-18

申请号：US14197428

申请日：2014-03-05

Applicant: Kabushiki Kaisha Toshiba

Inventor： Hidetoshi WATANABE ,  Yasuaki MURASHI ,  Yoshinao TATEBAYASHI ,  Hidesato SARUWATARI ,  Hikaru YOSHIKAWA

IPC: H01M4/36

CPC classification number: H01M4/0407 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/623 ,  H01M4/70 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2220/20

Abstract: In general, according to one embodiment, a positive electrode is provided. The positive electrode includes a positive electrode current collector and a positive-electrode-mixture layer formed on the positive electrode current collector. The positive-electrode-mixture layer includes first pores and second pores. Pore size diameters D1 and D2 of the first and the second pores satisfy relationship: 0.03

Abstract translation: 通常，根据一个实施例，提供正电极。 正极包括在正极集电体上形成的正极集电体和正极混合层。 正极混合层包括第一孔和第二孔。 第一孔和第二孔的孔径D1和D2满足关系：0.03

公开(公告)号：US20210399307A1

公开(公告)日：2021-12-23

申请号：US17466391

申请日：2021-09-03

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tetsuro KANO ,  Yuki WATANABE ,  Hidetoshi WATANABE ,  Keigo HOSHINA

IPC: H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0525

Abstract: An electrode includes an active material-containing layer that contains active material particles and a binder containing a polymer. The active material particles contain a lithium-containing nickel-cobalt-manganese composite oxide represented by LiaNi(1−x−y)CoxMnyMzO2 where 0.9≤a≤1.2, 0

公开(公告)号：US20210013497A1

公开(公告)日：2021-01-14

申请号：US17025018

申请日：2020-09-18

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tetsuro KANO ,  Yuki WATANABE ,  Kazuhiro NAMBA ,  Hidetoshi WATANABE ,  Keigo HOSHINA

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525

Abstract: According to one embodiment, an electrode is provided. The electrode includes an active-material containing layer that includes active material particles and a binder containing a polymer that contains monomers containing nitrogen atoms. The particle size distribution chart of the electrode obtained by the laser diffraction scattering has peak A and peak B whose particle sizes corresponding to their peak tops are different from each other. The particle size DA corresponding to the peak top of the peak A is smaller than the particle size DB corresponding to the peak top of the peak B. The ratio PA/PB of the frequency PA of the peak top of the peak A and the frequency PB of the peak top of the peak B falls within the range of 0.2 or larger and 1.5 or smaller.