公开(公告)号：US20160240849A1

公开(公告)日：2016-08-18

申请号：US15051035

申请日：2016-02-23

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiromichi KURIYAMA ,  Hikaru YOSHIKAWA ,  Hidesato SARUWATARI ,  Yasuaki MURASHI ,  Dai YAMAMOTO ,  Naoki NISHIO

IPC: H01M4/505 ,  H01M4/58 ,  H01M2/02 ,  H01M4/525

CPC classification number: H01M4/505 ,  H01M2/0285 ,  H01M2/0287 ,  H01M4/131 ,  H01M4/364 ,  H01M4/485 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  Y02T10/7011

Abstract: The nonaqueous electrolyte battery according to one embodiment includes a positive electrode and a negative electrode. The positive electrode contains a positive electrode active material containing manganese-containing composite oxide. The negative electrode contains a negative electrode active material selected from the group consisting of titanium oxide and titanium-containing composite oxide. A ratio p/n of a capacity p per unit area of the positive electrode to a capacity n per unit area of the negative electrode is in the range of 0.8 or more and 1 or less.

Abstract translation: 根据一个实施方案的非水电解质电池包括正极和负极。 正极含有含有锰复合氧化物的正极活性物质。 负极含有选自氧化钛和含钛复合氧化物的负极活性物质。 正极的每单位面积的容量p与负极的每单位面积的容量n的比p / n为0.8以上1以下。

公开(公告)号：US20170018797A1

公开(公告)日：2017-01-19

申请号：US15053384

申请日：2016-02-25

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuaki MURASHI ,  Hikaru YOSHIKAWA ,  Hidesato SARUWATARI ,  Hiromichi KURIYAMA ,  Dai YAMAMOTO ,  Naoki NISHIO ,  Koichi KAWAMURA

IPC: H01M10/0525 ,  H01M10/0562 ,  H01M10/0583 ,  H01M4/505 ,  H01M4/48 ,  H01M4/485 ,  H01M4/50 ,  H01M10/02 ,  H01M4/131

CPC classification number: H01M10/0525 ,  H01M2/0285 ,  H01M4/364 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/44 ,  Y02T10/7011

Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. When the nonaqueous electrolyte battery is discharged at a constant current of 0.5 C until a voltage becomes 1.5 V, a curve obtained by taking dQ/dV during the discharge as a vertical axis and voltage as a horizontal axis has a first peak and a second peak. The firs peak is a peak that appears within a range of from 2.54 V to 2.65 V, and the second peak is a peak that appears within a range of from 2.4 V to less than 2.54 V. A dQ/dV peak intensity A of the first peak and a dQ/dV peak intensity B of the second peak satisfy 0.8≦A/B 1.0.

Abstract translation: 根据一个实施方式，非水电解质电池包括负极，正极和非水电解质。 当非水电解质电池以0.5C的恒定电流放电直到电压变为1.5V时，在放电期间以dQ / dV作为垂直轴并且作为水平轴的电压获得的曲线具有第一峰和第二峰 。 第一峰是出现在2.54V至2.65V的范围内的峰，第二峰是出现在2.4V至小于2.54V的范围内的峰.DQ / dV峰强度A 第二峰的第一峰和dQ / dV峰强度B满足0.8≤A/ B 1.0。

公开(公告)号：US20230361292A1

公开(公告)日：2023-11-09

申请号：US18338524

申请日：2023-06-21

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takuya HASEGAWA ,  Natsuki OTANI ,  Naoki NISHIO

IPC: H01M4/131 ,  H01M4/525 ,  H01M4/505

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/525 ,  H01M2004/021

Abstract: According to one embodiment, an electrode includes an active material-containing layer including single particles of an active material represented by a following formula (1) and a conductive agent. In a cumulative distribution of circularity of unit particles which include the single particles and the conductive agent, an average circularity at 25% in the cumulative distribution is 0.05 to 0.60, and an average circularity at 90% in the cumulative distribution is 0.3 to 0.85. A porosity of the active material-containing layer is 10% to 25%:
LiaNi (1-b-c-d) CObMncMdaO2 (1), where 1 ≤ a ≤ 1.2, 0 ≤ b ≤ 0.4, 0 ≤ c ≤ 0.4, 0 ≤ d ≤ 0.1, and M is one or more elements selected from the group consisting of Fe, Cu, Ti, Mg, Al, W, Y, B, Mo, Nb, Zn, Sn, Zr, Ga, and V.

公开(公告)号：US20230352682A1

公开(公告)日：2023-11-02

申请号：US18351773

申请日：2023-07-13

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Natsuki OTANI ,  Naoki NISHIO ,  Takuya HASEGAWA ,  Ryo HARA

IPC: H01M4/525 ,  G01N23/2055 ,  H01M10/0569 ,  H01M10/0567

CPC classification number: H01M4/525 ,  G01N23/2055 ,  H01M10/0569 ,  H01M10/0567 ,  H01M2004/028

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. A positive electrode includes a lithium nickel cobalt manganese composite oxide represented by LixNi1-y-zCoyMnzO2; 0