公开(公告)号：US10295609B2

公开(公告)日：2019-05-21

申请号：US14905137

申请日：2014-06-18

Applicant: GS Yuasa International Ltd.

Inventor： Yuichi Ikeda ,  Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  H01M10/42 ,  H01M10/48 ,  G01R31/392 ,  G01R31/389 ,  H02J7/00 ,  G01R31/44 ,  H02J7/04

Abstract: A deterioration state detection apparatus for detecting a deterioration state of capacity enabling charge or discharge of a nonaqueous electrolyte secondary battery includes: an acquisition unit that acquires a capacitance of the nonaqueous electrolyte secondary battery: and a determination unit that determines the deterioration state of capacity enabling charge or discharge of the nonaqueous electrolyte secondary battery, from change of the acquired capacitance.

公开(公告)号：US10557892B2

公开(公告)日：2020-02-11

申请号：US15534766

申请日：2015-12-08

Applicant: GS Yuasa International Ltd.

Inventor： Keita Suzuki ,  Yohei Tao

IPC: G01R31/387 ,  H01M10/48 ,  H02J7/00

Abstract: Provided is an energy storage device state estimation device (100) for estimating a state of an energy storage device (200) at a predetermined point of time. The energy storage device state estimation device (100) includes: a history acquisition part (110) configured to acquire a charge-discharge history of the energy storage device (200) up to the predetermined point of time; a deterioration value estimation part (130) configured to estimate a time dependent deterioration value and a working electricity dependent deterioration value of the energy storage device (200) at the predetermined point of time using information about time dependent deterioration and information about working electricity dependent deterioration corresponding to the charge-discharge history; and a state estimation part (140) configured to estimate a state of the energy storage device (200) at the predetermined point of time using the time dependent deterioration value and the working electricity dependent deterioration value.

公开(公告)号：US10371757B2

公开(公告)日：2019-08-06

申请号：US15407879

申请日：2017-01-17

Applicant: GS Yuasa International Ltd.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  G01R31/389 ,  G01R31/367 ,  G01R31/385 ,  G01R31/392 ,  H01M10/48 ,  H02J7/00 ,  H01M10/42

Abstract: A post-deterioration performance estimating apparatus wherein a post-deterioration performance value indicates performance of an energy storage device. The apparatus includes a post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between a cumulative operating period and a resistance value, (2) a relation between the resistance value and energy storage capacity, and (3) the cumulative operating period at the deterioration point. Alternatively, the post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between an equilibrial capacity decreased amount, (2) a kinetic capacity decreased amount, and (3) a cumulative operating period at the deterioration point.

公开(公告)号：US09983269B2

公开(公告)日：2018-05-29

申请号：US14917797

申请日：2014-08-11

Applicant: GS Yuasa International Ltd.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01N27/416 ,  G01R31/36 ,  H01M10/0525 ,  H01M10/42

CPC classification number: G01R31/3662 ,  G01R31/3651 ,  G01R31/3679 ,  H01M10/0525 ,  H01M10/4207

Abstract: A life estimating apparatus estimating a residual life that is of a usable accumulated residual period of an energy storage device, the life estimating apparatus includes: a relational expression acquisition unit that acquires a relational expression, in which a resistance value of a DC resistance or an AC resistance of the energy storage device at an accumulated use period elapsed time point that is of an accumulated value of a use period of the energy storage device is given by an expression including a term of a function of the accumulated use period; and a residual life estimating unit that estimates the residual life of the energy storage device using the acquired relational expression. When a value in which the resistance value in the relational expression is differentiated by the accumulated use period twice becomes a positive value, the relational expression acquisition unit sets the accumulated use period to a relational expression acquisition period, and acquires the relational expression obtained from a relationship between the resistance value and the accumulated use period up to the relational expression acquisition period elapsed time point.

公开(公告)号：US20150301123A1

公开(公告)日：2015-10-22

申请号：US14648657

申请日：2013-10-22

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36

CPC classification number: G01R31/392 ,  B60L3/0046 ,  B60L58/16 ,  B60Y2200/91 ,  B60Y2200/92 ,  B60Y2400/112 ,  G01R31/367 ,  G01R31/385 ,  G01R31/389 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/48 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0047 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A performance deterioration detecting apparatus detects an initial state of sudden deterioration in performance of an energy storage device as a performance deterioration start state, and includes: a first acquiring unit configured to acquire a first maximum variation amount as a maximum value of a capacity variation amount that is a degree of variation in current carrying capacity relative to variation in voltage of the charged or discharged energy storage device, regarding a capacity-voltage property at a first time point, indicating relation between the capacity variation amount and the voltage; a second acquiring unit configured to acquire a second maximum variation amount as a maximum value of the capacity variation amount regarding the capacity-voltage property at a second time point after the first time point; and a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state at the second time point if a variation amount ratio as a ratio of the second maximum variation amount to the first maximum variation amount exceeds a predetermined value.

Abstract translation: 性能劣化检测装置检测作为性能劣化开始状态的能量存储装置的性能突然劣化的初始状态，并且包括：第一获取单元，被配置为获取第一最大变化量作为容量变化量的最大值 相对于充电或放电能量存储装置的电压变化，载流量相对于第一时刻的容量电压特性的变化程度，表示容量变化量与电压之间的关系; 第二获取单元，被配置为获取第二最大变化量作为与第一时间点之后的第二时间点的电容电压特性相关的容量变化量的最大值; 以及性能劣化确定器，被配置为如果作为所述第二最大变化量与所述第一最大变化量的比率的变化量比超过预定值，则确定所述能量存储装置在所述第二时间点处于所述性能劣化开始状态。

公开(公告)号：US20170123013A1

公开(公告)日：2017-05-04

申请号：US15407879

申请日：2017-01-17

Applicant: GS Yuasa International Ltd.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  H01M10/48 ,  H02J7/00 ,  H01M10/42

CPC classification number: G01R31/389 ,  G01R31/3648 ,  G01R31/367 ,  G01R31/385 ,  G01R31/392 ,  H01M10/4285 ,  H01M10/48 ,  H02J7/0047 ,  H02J2007/005

Abstract: A post-deterioration performance estimating apparatus wherein a post-deterioration performance value indicates performance of an energy storage device. The apparatus includes a post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between a cumulative operating period and a resistance value, (2) a relation between the resistance value and energy storage capacity, and (3) the cumulative operating period at the deterioration point. Alternatively, the post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between an equilibrial capacity decreased amount, (2) a kinetic capacity decreased amount, and (3) a cumulative operating period at the deterioration point.

公开(公告)号：US20150301118A1

公开(公告)日：2015-10-22

申请号：US14648650

申请日：2013-11-27

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36

CPC classification number: G01R31/3662 ,  G01R31/3627 ,  G01R31/3648 ,  G01R31/3651 ,  G01R31/3679 ,  H01M10/4285 ,  H01M10/48 ,  H02J7/0047 ,  H02J2007/005

Abstract: A post-deterioration performance estimating apparatus estimates a post-deterioration performance value indicating performance of an energy storage device at a predetermined deterioration point, wherein discharge capacity of the energy storage device discharging at a predetermined first current is referred to as energy storage capacity, discharge capacity of the energy storage device discharging at a second current of a current value smaller than that of the first current is referred to as small current discharge capacity, a relational expression on relation among initial capacity of the energy storage device, a first capacity decreased amount obtained by subtracting the small current discharge capacity from the initial capacity, a second capacity decreased amount obtained by subtracting the energy storage capacity from the small current discharge capacity, and a cumulative operating period as a cumulative value of operating periods of the energy storage device is referred to as a first relational expression, and the post-deterioration performance estimating apparatus includes a post-deterioration performance estimator configured to estimate the post-deterioration performance value at the deterioration point in accordance with the first relational expression and the cumulative operating period at the deterioration point.

Abstract translation: 劣化后性能估计装置估计指示在预定劣化点处的能量存储装置的性能的劣化后性能值，其中以预定的第一电流放电的储能装置的放电容量被称为储能容量，放电 将能量存储装置以比第一电流小的电流值的第二电流放电的容量被称为小电流放电容量，关于储能装置的初始容量之间的关系式，第一容量减小量 通过从初始容量减去小电流放电容量获得的第二容量减小量，通过从小电流放电容量减去能量存储容量而获得的第二容量减小量，以及作为能量存储装置的运行周期的累积值的累积运行周期是 简称第一 关系式表示和劣化后性能估计装置包括：劣化后性能估计器，被配置为根据第一关系表达式和劣化点处的累积操作周期来估计劣化点处的劣化后性能值。

公开(公告)号：US09864017B2

公开(公告)日：2018-01-09

申请号：US15385418

申请日：2016-12-20

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  H02J7/00 ,  H01M10/48 ,  H01M10/0525 ,  B60L11/18 ,  B60L3/00

CPC classification number: G01R31/3679 ,  B60L3/0046 ,  B60L11/1857 ,  B60Y2200/91 ,  B60Y2200/92 ,  B60Y2400/112 ,  G01R31/3627 ,  G01R31/3651 ,  G01R31/3662 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/48 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0047 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A performance deterioration detecting apparatus configured to detect a performance deterioration start state of an energy storage device. The performance deterioration start state is an initial state of deterioration in performance of the energy storage device. The apparatus includes a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state based on a displacement of peak position in a capacity-voltage property of the energy storage device with time. The capacity-voltage property indicates a relation between a capacity variation amount (dQ/dV) and a voltage (V).

公开(公告)号：US20170102436A1

公开(公告)日：2017-04-13

申请号：US15385418

申请日：2016-12-20

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  B60L3/00 ,  B60L11/18 ,  H01M10/48 ,  H01M10/0525

CPC classification number: G01R31/3679 ,  B60L3/0046 ,  B60L11/1857 ,  B60Y2200/91 ,  B60Y2200/92 ,  B60Y2400/112 ,  G01R31/3627 ,  G01R31/3651 ,  G01R31/3662 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/48 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0047 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A performance deterioration detecting apparatus configured to detect a performance deterioration start state of an energy storage device. The performance deterioration start state is an initial state of deterioration in performance of the energy storage device. The apparatus includes a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state based on a displacement of peak position in a capacity-voltage property of the energy storage device with time. The capacity-voltage property indicates a relation between a capacity variation amount (dQ/dV) and a voltage (V).

公开(公告)号：US09581653B2

公开(公告)日：2017-02-28

申请号：US14648650

申请日：2013-11-27

Applicant: GS Yuasa International Ltd.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  H01M10/48 ,  H02J7/00

CPC classification number: G01R31/3662 ,  G01R31/3627 ,  G01R31/3648 ,  G01R31/3651 ,  G01R31/3679 ,  H01M10/4285 ,  H01M10/48 ,  H02J7/0047 ,  H02J2007/005

Abstract: A post-deterioration performance estimating apparatus estimates a post-deterioration performance value indicating performance of an energy storage device at a predetermined deterioration point, wherein discharge capacity of the energy storage device discharging at a predetermined first current is referred to as energy storage capacity, discharge capacity of the energy storage device discharging at a second current of a current value smaller than that of the first current is referred to as small current discharge capacity, a relational expression on relation among initial capacity of the energy storage device, a first capacity decreased amount obtained by subtracting the small current discharge capacity from the initial capacity, a second capacity decreased amount obtained by subtracting the energy storage capacity from the small current discharge capacity, and a cumulative operating period as a cumulative value of operating periods of the energy storage device is referred to as a first relational expression, and the post-deterioration performance estimating apparatus includes a post-deterioration performance estimator configured to estimate the post-deterioration performance value at the deterioration point in accordance with the first relational expression and the cumulative operating period at the deterioration point.

Abstract translation: 劣化后性能估计装置估计指示在预定劣化点处的能量存储装置的性能的劣化后性能值，其中以预定的第一电流放电的储能装置的放电容量被称为储能容量，放电 将能量存储装置以比第一电流小的电流值的第二电流放电的容量被称为小电流放电容量，关于储能装置的初始容量之间的关系式，第一容量减小量 通过从初始容量减去小电流放电容量获得的第二容量减小量，通过从小电流放电容量减去能量存储容量而获得的第二容量减小量，以及作为能量存储装置的运行周期的累积值的累积运行周期是 简称第一 关系式表示和劣化后性能估计装置包括：劣化后性能估计器，被配置为根据第一关系表达式和劣化点处的累积操作周期来估计劣化点处的劣化后性能值。