公开(公告)号：US20200284842A1

公开(公告)日：2020-09-10

申请号：US16648913

申请日：2018-07-11

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hirotaka Endo ,  Mitsumoto Kawai ,  Tetsuya Koido

IPC: G01R31/388 ,  G01R31/367 ,  B60L58/12 ,  G01R31/36 ,  G01R31/374 ,  B60L53/66

Abstract: This battery capacity estimation device is provided with: a condition variable acquisition unit which acquires standard variable values (Tstd, Istd, V1std, V2std) indicating a standard charging condition in a secondary battery and measurement variable values (Tmes, Imes, V1mes, V2mes) indicating an actual charging condition obtained by measurement; and a capacity estimation unit which estimates the maximum capacity from a relationship between the standard variable values and the measurement variables acquired by the condition variable acquisition unit, wherein the capacity estimation unit calculates an apparent capacity (ΔQmes/ΔSOC) by using a uniform calculation method regardless of a change in charging condition, and estimates the maximum capacity (Qmax) by adding, to the apparent capacity, a correction amount obtained by using the differences between the measurement variables and the standard variables.

公开(公告)号：US10852358B2

公开(公告)日：2020-12-01

申请号：US16648913

申请日：2018-07-11

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hirotaka Endo ,  Mitsumoto Kawai ,  Tetsuya Koido

IPC: G06F11/30 ,  G01R31/388 ,  G01R31/367 ,  B60L53/66 ,  G01R31/36 ,  G01R31/374 ,  B60L58/12

Abstract: This battery capacity estimation device is provided with: a condition variable acquisition unit which acquires standard variable values (Tstd, Istd, V1std, V2std) indicating a standard charging condition in a secondary battery and measurement variable values (Tmes, Imes, V1mes, V2mes) indicating an actual charging condition obtained by measurement; and a capacity estimation unit which estimates the maximum capacity from a relationship between the standard variable values and the measurement variables acquired by the condition variable acquisition unit, wherein the capacity estimation unit calculates an apparent capacity (ΔQmes/ΔSOC) by using a uniform calculation method regardless of a change in charging condition, and estimates the maximum capacity (Qmax) by adding, to the apparent capacity, a correction amount obtained by using the differences between the measurement variables and the standard variables.

公开(公告)号：US20210088596A1

公开(公告)日：2021-03-25

申请号：US16963852

申请日：2019-06-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hirotaka Endo ,  Terumi Furuta ,  Mitsumoto Kawai

IPC: G01R31/389 ,  G01R31/367 ,  G01R31/387 ,  G01R31/396

Abstract: Provided is an internal resistance estimating method capable of estimating the internal resistance of a secondary battery, taking account of conditions when the secondary battery is being charged, without requiring progress information when the secondary battery is being used. The internal resistance estimating method for estimating the internal resistance of a secondary battery includes estimating an internal resistance Rd (Ts, Is, Va) on the basis of an internal resistance calculating formula, from an acquired internal resistance Rd (Ta, la, Va) of a battery, and estimating an internal resistance Rd (Ts, Is, Vs) from the estimated internal resistance Rd (Ts, Is, Va).

公开(公告)号：US11205781B2

公开(公告)日：2021-12-21

申请号：US16439714

申请日：2019-06-13

Applicant: Honda Motor Co.,Ltd.

Inventor： Pu Qian ,  Toshio Tokune ,  Mitsumoto Kawai

IPC: H01M4/75 ,  H01M4/02 ,  H01M10/058

Abstract: The disclosure provides a filamentary positive electrode for solid battery, a solid battery having the filamentary positive electrode for solid battery, a manufacturing method of the filamentary positive electrode for solid battery, and a manufacturing method of the solid battery having the filamentary positive electrode for solid battery. The structure of a positive electrode that constitutes a solid battery is a filamentous structure. A positive electrode active material layer including a positive electrode active material is provided on a surface of a conductive positive electrode filament, and a positive electrode electrolyte layer including an electrolyte is further provided on an outer side of the positive electrode active material layer to form a filamentary positive electrode for solid battery. The filamentary positive electrode for solid battery and a filamentary negative electrode for solid battery, which has a filamentous structure, are laminated to form a solid battery.

公开(公告)号：US11079441B2

公开(公告)日：2021-08-03

申请号：US16963852

申请日：2019-06-04

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hirotaka Endo ,  Terumi Furuta ,  Mitsumoto Kawai

IPC: G01R31/389 ,  G01R31/387 ,  G01R31/396 ,  G01R31/367

Abstract: Provided is an internal resistance estimating method capable of estimating the internal resistance of a secondary battery, taking account of conditions when the secondary battery is being charged, without requiring progress information when the secondary battery is being used. The internal resistance estimating method for estimating the internal resistance of a secondary battery includes estimating an internal resistance Rd (Ts, Is, Va) on the basis of an internal resistance calculating formula, from an acquired internal resistance Rd (Ta, la, Va) of a battery, and estimating an internal resistance Rd (Ts, Is, Vs) from the estimated internal resistance Rd (Ts, Is, Va).

公开(公告)号：US09851329B2

公开(公告)日：2017-12-26

申请号：US15245745

申请日：2016-08-24

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takanori Maebashi ,  Yoshiya Fujiwara ,  Mitsumoto Kawai ,  Nariaki Kuriyama

IPC: H01J37/20 ,  G01N27/416 ,  H01M14/00 ,  H01J37/16 ,  H01M10/42 ,  H01J37/26

CPC classification number: G01N27/4168 ,  H01J37/16 ,  H01J37/20 ,  H01J37/26 ,  H01M10/4285 ,  H01M14/00

Abstract: Substrates forming an overlapping portion of an analytical cell have through holes each having a shape tapered from an outer surface of the substrate facing to outside of the overlapping portion toward an inner surface thereof facing to inside thereof. An observation window is formed between the through holes facing each other. In the overlapping portion, at least one of negative and positive electrode active materials is provided between transmission membranes of the observation window, and at least one pillar is provided between first and second positions. At the first position, edge portions of the through holes of the outer surfaces are face-to-face with each other. At the second position, edge portions of the through holes of the inner surfaces are face-to-face with each other. At least one spacer is further provided at a position shifted from the first position toward a circumferential edge of the overlapping portion.

公开(公告)号：US09689838B2

公开(公告)日：2017-06-27

申请号：US15245520

申请日：2016-08-24

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takanori Maebashi ,  Yoshiya Fujiwara ,  Mitsumoto Kawai ,  Nariaki Kuriyama

IPC: G01N27/00 ,  G01N27/416 ,  H01M14/00 ,  H01M10/42

CPC classification number: G01N27/4168 ,  G01R31/36 ,  H01M10/4285 ,  H01M14/00

Abstract: An analytical cell includes a first substrate with a first through hole formed therein, and a second substrate with first and second through holes formed therein. First and second solid portions protruding respectively from the first and second substrates are solid-state bonded together to form a solid state joint. By the solid state joint, the first and second substrates are joined together such that transmission membranes of the first and second substrates are mutually spaced by a predetermined distance, to form an overlapping portion. In the overlapping portion, an observation window is formed at a position where the first through holes face each other, and an accommodating part is formed between a lid member and the first substrate through the second through hole. One of negative and positive electrode active materials is provided in the accommodating part, and the other is provided between the transmission membranes of the observation window.

公开(公告)号：US09455117B2

公开(公告)日：2016-09-27

申请号：US14828717

申请日：2015-08-18

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yoshiya Fujiwara ,  Nariaki Kuriyama ,  Takanori Maebashi ,  Mitsumoto Kawai

IPC: H01J37/20

CPC classification number: H01J37/20 ,  H01J2237/2003 ,  H01J2237/2007 ,  H01J2237/2602 ,  H01J2237/2802

Abstract: An analytical cell includes a first holder and a second holder. The first holder and the second holder each contain a substrate including a through-hole and a transmission membrane having an electron beam permeability. The through-hole is covered with the transmission membrane. The first holder and the second holder are stacked to form an overlapping portion such that the transmission membranes face toward each other. A negative electrode active material and a positive electrode active material, which are arranged at a distance from each other and are in contact, respectively, with an electrolytic solution, are connected electrically to a negative electrode collector and a positive electrode collector, respectively, in the overlapping portion. A lyophobic part having no affinity for the electrolytic solution is formed on at least one of the negative electrode collector and the positive electrode collector.

Abstract translation: 分析单元包括第一保持器和第二保持器。 第一保持器和第二保持器每个包含具有通孔和具有电子束透过性的透射膜的基板。 透孔覆盖有透膜。 第一保持器和第二保持器堆叠形成重叠部分，使得透膜彼此面对。 分别与电解液接触的负极活性物质和正极活性物质分别与负极集电体和正极集电体电连接 重叠部分。 在负极集电体和正极集电体中的至少一个上形成对电解液无亲和性的疏液性部分。