公开(公告)号：US20150072239A1

公开(公告)日：2015-03-12

申请号：US14481132

申请日：2014-09-09

Applicant: DENSO CORPORATION

Inventor： Syuuhei YOSHIDA ,  Yuta SHIMONISHI ,  Daisuke SHIBATA

IPC: H01M4/136 ,  H01M4/04 ,  H01M4/1397 ,  H01M4/58 ,  H01M4/62

CPC classification number: H01M4/136 ,  C01B25/30 ,  C01B25/377 ,  C01B25/45 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y02T10/7011

Abstract: A positive electrode active material includes a conductive matrix and a lithium metal compound of a polyanion structure provided on the surface of the conductive matrix. The lithium metal compound is expressed as LiαM0βXηO4-γZγ, in which: M0 is one or more selected from Mn, Co, Ni, Fe, Cu, Cr, Mg, Ca, Zn, and Ti; X is one or more selected from P, As, Si, Mo, and Ge; Z is one or more selected from Al, Mg, Ca, Zn, and Ti, being optionally includable; α satisfies 0≦α≦2.0; β satisfies 0≦β≦1.5; η satisfies 1≦η≦1.5; and γ satisfies 0≦γ≦1.5.

Abstract translation: 正极活性材料包括导电基体和设置在导电基体表面上的聚阴离子结构的锂金属化合物。 锂金属化合物表示为LiαM0＆bgr; X＆eegr; O4-γZγ，其中：M0是选自Mn，Co，Ni，Fe，Cu，Cr，Mg，Ca，Zn和Ti中的一种或多种; X是选自P，As，Si，Mo和Ge中的一种或多种; Z是选自Al，Mg，Ca，Zn和Ti中的一种或多种，​​可选地包括; α满足0＆nlE;α＆nlE; 2.0; ＆bgr 满足0＆nlE;＆bgr;＆nlE; 1.5; ＆eegr 满足1＆nlE;＆eegr;＆nlE; 1.5; γ满足0＆nlE;γ＆nlE; 1.5。

公开(公告)号：US20200259224A1

公开(公告)日：2020-08-13

申请号：US16785982

申请日：2020-02-10

Applicant: DENSO CORPORATION

Inventor： Yuta SHIMONISHI ,  Shuhei YOSHIDA ,  Daisuke SHIBATA ,  Hiroyoshi YAMAMOTO

IPC: H01M10/613 ,  H01M2/10 ,  H01M10/647 ,  H01M10/6557 ,  H01M10/0525 ,  H01M10/617

Abstract: A battery structure includes a plurality of batteries each made of lithium-ion secondary battery; and a plurality of arrangement portions in which the plurality of batteries are arranged. The plurality of arrangement portions are divided into two groups of: a upper heat transfer group having heat transfer orders higher than a center value of the heat transfer orders, where the heat transfer orders are respective amount of heat transfer from the batteries being ranked in descending order; and a lower heat transfer group having the heat m transfer orders lower than the center value. A battery among the plurality of batteries showing the highest value of a lithium deposition tolerance which represents a degree of lithium being unlikely to deposit during charge/discharge operation, is disposed in a high tolerance arrangement portion in the plurality of arrangement portions, the high tolerance arrangement portion belonging to the upper heat transfer group.

公开(公告)号：US20150042289A1

公开(公告)日：2015-02-12

申请号：US14451767

申请日：2014-08-05

Applicant: DENSO CORPORATION

Inventor： Shuhei YOSHIDA ,  Daisuke SHIBATA

IPC: H02J7/00 ,  G01R31/36 ,  H01M10/44

CPC classification number: H01M10/441 ,  G01R31/362 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/482 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J7/0016 ,  H02J7/0073 ,  H02J7/008 ,  Y02E60/122 ,  Y02T10/7011 ,  Y02T10/7055

Abstract: An assembled battery includes a plurality of secondary cells, a first arithmetic operator, a second arithmetic operator, and a discharger. The first arithmetic operator calculates a voltage change rate of each of the secondary cells during charging/discharging thereof. The second arithmetic operator determines a discharge condition for each of the secondary cells from the voltage change rate calculated in the first arithmetic operator and a state of charge of each of the secondary cells. The discharger performs discharging of each of the secondary cells on the basis of the discharge condition when the assembled battery is neither being charged nor being discharged. The second arithmetic operator determines the discharge condition of each of the secondary cells such that each of the secondary cells after the discharging has the same state of charge.

Abstract translation: 组合电池包括多个二次电池，第一算术运算器，第二算术运算器和放电器。 第一算术运算器计算每个二次电池在其充电/放电期间的电压变化率。 第二算术运算器根据在第一算术运算器中计算的电压变化率和每个二次电池的电荷状态来确定每个二次电池的放电条件。 当组电池既不充电也不放电时，放电器基于放电条件执行每个二次电池的放电。 第二算术运算器确定每个二次电池的放电条件，使得放电之后的每个二次电池具有相同的充电状态。

公开(公告)号：US20160315316A1

公开(公告)日：2016-10-27

申请号：US15133250

申请日：2016-04-20

Applicant: DENSO CORPORATION

Inventor： Shuhei YOSHIDA ,  Koji OHIRA ,  Masaki UCHIYAMA ,  Daisuke SHIBATA

IPC: H01M4/36 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/366 ,  H01M4/13 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021

Abstract: An electrode active material for a nonaqueous electrolyte secondary battery includes: a core part including at least one of an inorganic oxide and a carbon-composite inorganic composite oxide; and a shell part for carbon coating on the core part. The electrode active material has a specific surface area of 6.0 m2/g or more. The electrode active material has a moisture content of 400 ppm or less, which is measured by a Karl Fischer method such that the electrode active material is heated in a heat-evaporating manner, and continuously maintained at 250° C. for 40 minutes without exposing to an atmosphere after the electrode active material is exposed to the atmosphere to absorb moisture to be saturated.

Abstract translation: 非水电解质二次电池用电极活性物质包括：芯部，其包含无机氧化物和碳复合无机复合氧化物中的至少一种; 以及用于在芯部上涂覆碳的外壳部分。 电极活性物质的比表面积为6.0m 2 / g以上。 电极活性物质的水分含量为400ppm以下，通过卡尔费休法测定，使得电极活性物质以热蒸发方式加热，并连续保持在250℃下40分钟而不暴露 在电极活性物质暴露于大气中以吸收水分以饱和之后的气氛。