公开(公告)号：US11977127B2

公开(公告)日：2024-05-07

申请号：US16961865

申请日：2019-01-15

Applicant: Renault s.a.s. ,  NISSAN MOTOR CO., LTD.

Inventor： Bruno Delobel ,  Benoit Arsac ,  Masato Origuchi

IPC: G01R31/396 ,  B60L58/10 ,  G01R31/00 ,  G01R31/371 ,  G01R31/3835 ,  G01R31/392 ,  H01M10/48

CPC classification number: G01R31/396 ,  B60L58/10 ,  G01R31/006 ,  G01R31/371 ,  G01R31/3835 ,  G01R31/392 ,  H01M10/48

Abstract: A method for detecting a faulty cell in an electric battery pack includes the following steps: measuring the no-load voltage at the terminals of each cell of the battery pack; calculating the deviation between the no-load voltage measured at the terminals of the cell and an average known no-load voltage as a function of the number of days during which the battery pack was not used; calculating the difference between the calculated deviation and a quantity n·σ, n being an integer no lower than 1, and σ being a known standard deviation which is a function of the number of days during which the battery pack was not used; and detecting a faulty cell if the difference is greater than zero.

公开(公告)号：US11916259B2

公开(公告)日：2024-02-27

申请号：US17438233

申请日：2020-03-12

Applicant: RENAULT s.a.s.

Inventor： Aurelie Debart ,  Mathieu Legrand ,  Masato Origuchi ,  Natalie Rat

IPC: H01M50/627 ,  A62C3/16 ,  H01M50/148 ,  H01M50/159 ,  H01M50/202 ,  H01M50/204 ,  H01M50/233 ,  H01M50/262

CPC classification number: H01M50/627 ,  A62C3/16 ,  H01M50/148 ,  H01M50/159 ,  H01M50/202 ,  H01M50/204 ,  H01M50/233 ,  H01M50/262 ,  H01M2200/20

Abstract: A housing for a battery includes an envelope and at least one rupture device provided with a rupture cap. The rupture device is mounted at the location of an opening formed in the envelope. The rupture cap breaks when an excess pressure is exerted on its outer surface situated on the outer side of the housing.

公开(公告)号：US10046662B2

公开(公告)日：2018-08-14

申请号：US15667295

申请日：2017-08-02

Applicant: RENAULT S.A.S.

Inventor： Antoine Saint-Marcoux ,  Masato Origuchi ,  Ana-Lucia Driemeyer-Franco ,  Daniel Boiron

IPC: B60L11/18 ,  H02J7/00 ,  H01M10/44 ,  H01M10/0525 ,  G01R31/36

Abstract: Disclosed herein is an invention concerning a method for managing charging of a Li-ion battery based on at least one parameter chosen from a group consisting of a state of deterioration of the Li-ion battery and cell unbalance, the method comprising the following steps: a) determining an end-of-charge voltage value of said Li-ion battery, b) generating a control signal controlling the charging of said Li-ion battery, and c) transmitting the control signal to a charger, the control signal being generated in such a way that the Li-ion battery is charged based on the end-of-charge voltage value determined in step a), said end-of-charge voltage value being increased based on the state of deterioration of said Li-ion battery until a limit value is reached, in order to ensure a constant minimal level of required energy in said Li-ion battery is provided at a predetermined reference temperature.

公开(公告)号：US20180029491A1

公开(公告)日：2018-02-01

申请号：US15667295

申请日：2017-08-02

Applicant: RENAULT S.A.S.

Inventor： Antoine SAINT-MARCOUX ,  Masato Origuchi ,  Ana-Lucia Driemeyer-Franco ,  Daniel Boiron

IPC: B60L11/18 ,  H02J7/00 ,  H01M10/44 ,  H01M10/0525 ,  G01R31/36

CPC classification number: B60L11/1857 ,  B60L11/1809 ,  B60L11/1859 ,  B60L11/1861 ,  B60L11/1862 ,  B60L11/187 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  G01R31/3679 ,  H01M10/0525 ,  H01M10/44 ,  H02J7/0047 ,  H02J7/007 ,  Y02E60/122 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705

Abstract: Disclosed herein is an invention concerning a method for managing charging of a Li-ion battery based on at least one parameter chosen from a group consisting of a state of deterioration of the Li-ion battery and cell unbalance, the method comprising the following steps: determining an end-of-charge voltage value of said Li-ion battery, generating a control signal controlling the charging of said Li-ion battery, and transmitting the control signal to a charger, the control signal being generated in such a way that the Li-ion battery is charged based on the end-of-charge voltage value determined in step a), said end-of-charge voltage value being increased based on the state of deterioration of said Li-ion battery until a limit value is reached, in order to ensure a constant minimal level of required energy in said Li-ion battery is provided at a predetermined reference temperature.

公开(公告)号：US10180464B2

公开(公告)日：2019-01-15

申请号：US14908380

申请日：2014-07-16

Applicant: RENAULT s.a.s

Inventor： Antoine Saint-Marcoux ,  Masato Origuchi ,  Bruno Delobel ,  Thomas Creach ,  Juan-Pablo Soulier

IPC: G01R31/36 ,  B60L3/00 ,  B60L11/18 ,  H01M10/44 ,  H01M10/48

Abstract: A method for managing an electrochemical accumulator or a storage battery includes determining an estimated value of a state of deterioration of the accumulator from the accumulator's history of voltage values, intensity of current flow, and temperature. The estimated value is a barycentric value of the state of deterioration calculated as a barycenter of at least two values. The at least two values include a first value indicative of the state of deterioration of the accumulator calculated by a first method and a second value indicative of the state of deterioration of the accumulator calculated by a second method different from the first method. From an initial commissioning state of the accumulator, barycentric coefficients are varied at least once to calculate the next barycentric value when a previous value of the state of deterioration of the accumulator, calculated according to the first method, has passed a first threshold.

公开(公告)号：US20150072183A1

公开(公告)日：2015-03-12

申请号：US14388577

申请日：2013-03-26

Applicant: RENAULT s.a.s.

Inventor： Bruno Delobel ,  Masato Origuchi

IPC: H01M10/52 ,  H01M2/12 ,  H01M10/052 ,  H01M2/02

CPC classification number: H01M10/52 ,  H01M2/0262 ,  H01M2/1094 ,  H01M2/1223 ,  H01M2/1258 ,  H01M10/052 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A battery container comprising an outer casing surrounding a housing intended to receive at least one electric energy accumulator comprising Lithium hexafluorophosphate, the container comprising a filter comprising a silicon oxide-based material capable of filtering hydrofluoric acid vapours. The filter including an inner casing disposed between the outer casing and the housing of the container, the outer casing comprising an inner face against which the inner casing is secured, and the inner casing completely surrounds the housing.

Abstract translation: 一种电池容器，包括围绕外壳的外壳，所述外壳旨在接收包含六氟磷酸锂的至少一个电能蓄能器，所述容器包括包含能够过滤氢氟酸蒸气的基于氧化硅的材料的过滤器。 所述过滤器包括设置在所述外壳和所述容器的壳体之间的内壳，所述外壳包括固定所述内壳的内表面，并且所述内壳完全围绕所述壳体。