ClassID:

213767

H01M10/4228 - CPC Classification

Classification description:

Secondary cells; Manufacture thereof; Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells Leak testing of cells or batteries

Recent Application in this class:
#1
20260135163
2026-05-14

BATTERY MODULE

#2
20260126338
2026-05-07

Seal Inspection Device and Seal Inspection Method for Battery Cell

#3
20260121129
2026-04-30

LEAKAGE DETECTION LIQUID COLLECTOR AND BATTERY LEAKAGE DETECTION SYSTEM INCLUDING SAME

#4
20260094879
2026-04-02

METHOD AND APPARATUS FOR INSPECTING A POUCH BATTERY CELL FOR LIQUID LEAKAGE

#5
20260085991
2026-03-26

AIR TIGHTNESS CHECK METHOD AND TEST SYSTEM

#6
20260081237
2026-03-19

SYSTEMS AND METHODS FOR IN-LINE LEAK DETECTION OF BATTERY CELLS

#7
20260079216
2026-03-19

BATTERY PACK TEST CONNECTOR

#8
20260079068
2026-03-19

INLINE BATTERY ELECTROLYTE LEAK DETECTION

#9
20260079064
2026-03-19

SYSTEMS AND METHODS FOR INSPECTING STRUCTURAL INTEGRITY OF BATTERY PACK

#10
20260061234
2026-03-05

BATTERY STRUCTURE AND FLIGHT VEHICLE INCLUDING THE SAME

#11
20260038898
2026-02-05

BATTERY LABEL, BATTERY PACK, AND METHOD OF MANUFACTURING BATTERY LABEL

#12
20260036501
2026-02-05

DEVICE AND METHOD FOR DETECTING RUPTURE BEHAVIOR OF A BATTERY CELL

#13
20260031411
2026-01-29

BATTERY MONITORING SYSTEM

#14
20260031410
2026-01-29

METHOD AND APPARATUS FOR LEAK TESTING A BATTERY CELL

#15
20260018768
2026-01-15

Method for Manufacturing Lithium Secondary Battery

#16
20260018683
2026-01-15

SENSOR FOR BATTERY ASSEMBLY, AND TESTING METHOD OF BATTERY ASSEMBLY USING THE SAME

#17
20260009693
2026-01-08

Battery Housing and Method for Testing Leak Tightness

#18
20260009691
2026-01-08

FLUID LEAK MONITORING SYSTEM FOR POUCH TYPE BATTERY

#19
20250389608
2025-12-25

CELL TESTING SYSTEMS AND CONTROL LOGIC FOR AUTOMATED IN-LINE LEAK DETECTION IN PRISMATIC BATTERY CELLS

#20
20250360794
2025-11-27

BATTERY ENCLOSURE LEAK DETECTION

#21
20250357559
2025-11-20

IMPROVEMENTS IN A CELL ASSEMBLY SAFETY SYSTEM

#22
20250357552
2025-11-20

WATER INGRESS DETECTION CIRCUIT AND WATER INGRESS DETECTION METHOD

#23
20250343278
2025-11-06

DETECTION AND MITIGATION OF COOLANT LEAKS IN MULTIPLE BRANCH COOLANT SYSTEM

#24
20250341439
2025-11-06

VOLATILE ORGANIC COMPOUND SENSOR FOR BATTERY FAULT DETECTION AND DEVICE CONTROL

#25
20250329807
2025-10-23

FLOATING DOCKING APPARATUS, AIR TIGHTNESS DETECTION DEVICE, AND AIR TIGHTNESS DETECTION METHOD

#26
20250327713
2025-10-23

ELECTRIC VEHICLE BATTERY LEAK DETECTOR

#27
20250293318
2025-09-18

HELIUM DETECTION SYSTEM AND METHOD

#28
20250290994
2025-09-18

ELECTROLYTE FAULT PROGNOSTICS FOR LITHIUM-ION BATTERIES

#29
20250286153
2025-09-11

BATTERY PACK LEAKAGE INSPECTION SYSTEM AND APPARATUS THEREFOR

#30
20250273765
2025-08-28

BATTERY SYSTEM WITH INTEGRATED COOLING MANIFOLD

#31
20250260068
2025-08-14

VEHICLE

#32
20250244192
2025-07-31

METHOD, DEVICE AND SYSTEM FOR AIRTIGHTNESS TESTING OF BATTERY PACK AND BATTERY PACK

#33
20250239657
2025-07-24

CONNECTOR INSPECTION DEVICE AND INSPECTION SYSTEM USING THE SAME

#34
20250237573
2025-07-24

LEAK INSPECTION APPARATUS AND METHOD FOR SECONDARY BATTERY CELL

#35
20250233212
2025-07-17

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

#36
20250226508
2025-07-10

BATTERY TRAY ASSEMBLY, BATTERY PACK AND VEHICLE

#37
20250210757
2025-06-26

BATTERY ASSEMBLY AND CONTROLLING METHOD OF THE SAME

#38
20250192241
2025-06-12

CONTROL DEVICE AND VEHICLE

#39
20250183379
2025-06-05

METHOD FOR TESTING AIRTIGHTNESS OF BATTERY CELLS

#40
20250174742
2025-05-29

ENERGY STORAGE CONTROL SYSTEM

#41
20250173856
2025-05-29

METHOD TO AUTOMATE GAS LEAK DETECTION IN BATTERY MANUFACTURING USING DATA FROM OPTICAL GAS IMAGING SYSTEM

#42
20250149649
2025-05-08

ELECTROLYTE LEAKAGE DETECTION UNIT AND BATTERY MODULE INCLUDING THE SAME

#43
20250140939
2025-05-01

LEAKAGE ELECTROLYTE DETECTION DEVICE AND DETECTION METHOD

#44
20250137870
2025-05-01

HOLD-DOWN MECHANISM, AIRTIGHTNESS TESTING HOLD-DOWN DEVICE AND AIRTIGHTNESS TESTING SYSTEM

#45
20250125427
2025-04-17

LEAKAGE DETECTION DEVICE

#46
20250123176
2025-04-17

ELECTROLYTE LEAKAGE DETECTION UNIT AND BATTERY MODULE INCLUDING THE SAME

#47
20250116567
2025-04-10

BATTERY TEST TOOLING, AND USE METHOD AND CONTROL METHOD FOR BATTERY TEST TOOLING

#48
20250095140
2025-03-20

LIQUID LEAKAGE DETECTION METHOD, APPARATUS, AND DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

#49
20250046883
2025-02-06

DETERMINATION SYSTEM, INFORMATION PROCESSING APPARATUS, DETERMINATION METHOD, AND PROGRAM

#50
20250030071
2025-01-23

Battery Bank With a Safety Device and Method for Triggering the Safety Device

#51
20240429462
2024-12-26

OPTICAL LIQUID DETECTION SYSTEM

#52
20240429461
2024-12-26

PRESSING APPARATUS OF BATTERY CELL

#53
20240426695
2024-12-26

SEALING TEST CABINET FOR BATTERY PACK

#54
20240396125
2024-11-28

BATTERY PRESSURIZATION SYSTEM

#55
20240393401
2024-11-28

Isolation monitoring

#56
20240387883
2024-11-21

METHOD AND APPARATUS FOR DETECTING ONE OR MORE LEAKS IN A BATTERY ENCLOSURE OF A BATTERY

#57
20240351469
2024-10-24

DETECTION ARRANGEMENT, MOTOR VEHICLE AND METHOD FOR DETECTING A POSSIBLE FAULT IN AN ENERGY STORAGE OF A MOTOR VEHICLE

#58
20240347780
2024-10-17

SECONDARY BATTERY INTERNAL PRESSURE MEASUREMENT METHOD

#59
20240347779
2024-10-17

DEVICE FOR DETECTING LEAKS FOR MOTOR VEHICLE BATTERY PACK

#60
20240339676
2024-10-10

DEVICE WITH SHEET STRUCTURE FOR DETECTING LIQUID LEAKAGE OF BATTERY

#61
20240339675
2024-10-10

DEVICE FOR DETECTING LIQUID LEAKAGE OF BATTERY HAVING METAL HOUSING

#62
20240339674
2024-10-10

POWER SOURCE SYSTEM

#63
20240304872
2024-09-12

BATTERY MODULE CAPABLE OF EARLY DETECTION OF GAS VENTING, BATTERY PACK, AND METHOD FOR EARLY DETECTION OF GAS VENTING

#64
20240283034
2024-08-22

LIQUID LEAK DETECTION METHOD AND APPARATUS, BATTERY CONTROL UNIT, AND BATTERY MANAGEMENT SYSTEM

#65
20240283033
2024-08-22

SYSTEM FOR DETECTING ELECTROLYTE LEAKS DURING BATTERY MANUFACTURING

#66
20240248145
2024-07-25

MATURATION PROCESSES FOR ELECTRIC BATTERIES

#67
20240247994
2024-07-25

Helium detection device and helium detection equipment

#68
20240213547
2024-06-27

BATTERY, ELECTRIC DEVICE, AND BATTERY MANUFACTURING METHOD

#69
20240194954
2024-06-13

LIQUID LEAKAGE DETECTION SYSTEM AND STACKED CELL MODULE

#70
20240178468
2024-05-30

THERMAL RUNAWAY DETECTION SYSTEM FOR BATTERIES WITHIN ENCLOSURES

#71
20240162502
2024-05-16

Battery cell leak inspection device and battery cell leak inspection method

#72
20240159616
2024-05-16

FUNCTIONALLY TESTING A LEAK DETECTION DEVICE FOR CHECKING THE SEALING TIGHTNESS OF AN INSPECTION OBJECT FILLED WITH A LIQUID

#73
20240113383
2024-04-04

GAS MANAGEMENT FOR METAL-AIR BATTERIES

#74
20240063441
2024-02-22

APPARATUSES, METHODS, AND SYSTEMS FOR DETECTING BATTERY MODULE LEAKAGE

#75
20240021888
2024-01-18

BATTERY MODULE HAVING ELECTROLYTIC SOLUTION LEAKAGE DETECTION FUNCTION AND BATTERY PACK INCLUDING THE SAME

#76
20230420748
2023-12-28

APPARATUS FOR ANALYZING BATTERY CASE

#77
20230417816
2023-12-28

SYSTEM AND METHOD OF DETECTING LEAKAGE OF BATTERY CELL

#78
20230402657
2023-12-14

Secondary battery internal pressure measurement method

#79
20230378553
2023-11-23

DEVICE AND METHOD FOR TESTING A BATTERY

#80
20230327222
2023-10-12

INSPECTION METHOD FOR LITHIUM SECONDARY BATTERY

#81
20230307779
2023-09-28

Battery Module

#82
20230299366
2023-09-21

SYSTEM AND METHOD FOR PREDICTING VENT OCCURENCE TIME OF BATTERY CELL

#83
20230280412
2023-09-07

Methods and systems for on demand in-situ leakage current testing

#84
20230280233
2023-09-07

LEAK DETECTION METHOD AND SYSTEM

#85
20230268560
2023-08-24

Battery pack, method for controlling a battery pack, and vehicle

#86
20230253633
2023-08-10

SYSTEM AND METHOD FOR LEAK TESTING A BATTERY CELL

#87
20230253632
2023-08-10

METHOD FOR LEAK TESTING A BATTERY CELL

#88
20230136015
2023-05-04

BATTERY MODULE

#89
20230130328
2023-04-27

Gas detection apparatus and gas detection method for cell module assemblies

#90
20230124972
2023-04-20

Thermal runaway detection system for batteries within enclosures

#91
20230112981
2023-04-13

ELECTROLYTE LEAKAGE DETECTION SYSTEM FOR BATTERY AND ELECTROLYTE LEAKAGE DETECTION METHOD FOR BATTERY

#92
20230103765
2023-04-06

Battery pack, battery apparatus and method for detecting electrolyte leakage

#93
20230090139
2023-03-23

DEVICE FOR THE FILLING AND MAINTENANCE OF A SYSTEM WITH A BATTERY

#94
20230010586
2023-01-12

ELECTROLYTE SENSOR FOR SENSING ELECTROLYTE CREEPAGE IN A BATTERY

#95
20230003602
2023-01-05

Battery pack leakage detection system and detection method based on tracer gas cumulative test

#96
20220357233
2022-11-10

METHOD AND APPARATUS FOR DETECTING LEAKAGE OF COOLANT IN BATTERY COOLING DEVICE FOR VEHICLE

#97
20220328888
2022-10-13

Electrolyte detection device and secondary battery transfer facility comprising the same

#98
20220278380
2022-09-01

Liquid detection sensor

#99
20220268734
2022-08-25

Eddy current sensor having improved crack detection capability, and eddy current inspection device including same

#100
20220181709
2022-06-09

Tightness test of a liquid filled test object

#101
20220149339
2022-05-12

Energy storage device assemblies

#102
20220085428
2022-03-17

Thermal runaway detection system for batteries within enclosures

#103
20220057455
2022-02-24

Methods and systems for in-situ leakage current testing of cells in multi-cell battery packs

#104
20220034746
2022-02-03

Method and apparatus for detecting leakage of coolant in battery cooling device for vehicle

#105
20220029206
2022-01-27

Electronic device and method of detecting status of battery thereof

#106
20210265699
2021-08-26

Battery module

#107
20210265672
2021-08-26

Battery system, method for leakage detection inside the battery system, and vehicle including the battery system

#108
20210242507
2021-08-05

Traction battery of a motor vehicle

#109
20210206991
2021-07-08

Coated non-conductive substrate

#110
20210184272
2021-06-17

Simultaneous inspection device of multiple secondary battery cell pouches

#111
20210176889
2021-06-10

Louver design for battery backup units

#112
20210172905
2021-06-10

Sensing device for detecting analytes in batteries

#113
20210151807
2021-05-20

Power storage device

#114
20210083333
2021-03-18

Washer for secondary battery, secondary battery including same, and method for manufacturing washer for secondary battery

#115
20210027001
2021-01-28

Method for Predicting Sealing Reliability of Soft Packing Lithium Ion Battery

#116
20210020997
2021-01-21

Battery cell leak inspection device and battery cell leak inspection method

#117
20210015163
2021-01-21

Power supply unit of aerosol generation apparatus

#118
20200335833
2020-10-22

High-voltage battery for a motor vehicle having a detection device for detecting damage to the high-voltage battery, method for detecting damage to the high-voltage battery, and motor vehicle

#119
20200295417
2020-09-17

Coolant distribution interface for a battery module housing

#120
20200292404
2020-09-17

Device and method for detecting liquid leak into battery pack by using gyro sensor and moisture detection sensor

#121
20200243918
2020-07-30

Detection system

#122
20200225290
2020-07-16

Maturation processes for electric batteries cells

#123
20200067145
2020-02-27

Battery pack

#124
20200036054
2020-01-30

Jig device for inspecting quality of secondary battery

#125
20190363405
2019-11-28

Leakage detection device and battery pack having the same

#126
20190359071
2019-11-28

Electric power system for electric bus

#127
20190302189
2019-10-03

Method and system for calculating low voltage expression level of a secondary battery

#128
20190293618
2019-09-26

Battery including gas detector for detecting gas in void between seal region and power generating element

#129
20190242950
2019-08-08

Information processing apparatus, control method, and program

#130
20190229379
2019-07-25

Electronic device and method of detecting status of battery thereof

#131
20190190085
2019-06-20

Leak detection for batteries

#132
20190187216
2019-06-20

Methods for determining and characterizing soft shorts in electrochemical cells

#133
20190131668
2019-05-02

Liquid detection inside a battery tray to avoid battery malfunction

#134
20190063973
2019-02-28

Method and apparatus for detecting presence of a fluid

#135
20190033164
2019-01-31

Systems and methods for diagnosing seal integrity in a battery

#136
20180366787
2018-12-20

Safety sensor module with vehicle communication to first responders

#137
20180351222
2018-12-06

Battery pack including coolant leakage safety device

#138
20180301749
2018-10-18

Fast-charging lithium ion batterie unit

#139
20180294118
2018-10-11

Switch device, electronic component, and battery system

#140
20180198161
2018-07-12

Increasing cycling lifetime of fast-charging lithium ion batteries

#141
20180115023
2018-04-26

Method capable of easily checking for a defect in a battery pack

#142
20180062210
2018-03-01

BATTERY MANAGEMENT SYSTEM

#143
20180062162
2018-03-01

All-solid-state secondary battery

#144
20180053974
2018-02-22

Washer for detecting electrolyte leakage, and secondary battery comprising same

#145
20180040921
2018-02-08

Method and device for the detection of corrosion within an at least partially electrically conductive housing of an electric energy storage unit and corresponding electric energy storage system

#146
20180026313
2018-01-25

Detection system

#147
20180024102
2018-01-25

Battery including gas detector for detecting gas in void between seal and power generator

#148
20180003685
2018-01-04

Systems and methods for monitoring for a gas analyte

#149
20170365889
2017-12-21

BATTERY PACK PROTECTING SYSTEM AND METHOD

#150
20170276657
2017-09-28

Gas detection sheet

#151
20170092993
2017-03-30

BATTERY DAMAGE INDICATOR

#152
20170054183
2017-02-23

Porous coordination polymer, gas detecting material and lithium ion secondary battery having the same

#153
20170025713
2017-01-26

Gas detection material, gas detection tape and lithium ion secondary battery

#154
20160344014
2016-11-24

Power storage device manufacturing method, manufacturing device, liquid injection device, and liquid injection method

#155
20160261010
2016-09-08

Rechargeable battery including fluorescent coating layer

#156
20160254553
2016-09-01

Electrode plate and methods for manufacturing and testing an electrode plate

#157
20160172644
2016-06-16

Self-activated draining system

#158
20160133993
2016-05-12

Sealed battery manufacturing method

#159
20160118697
2016-04-28

Battery system and driving method thereof

#160
20150349386
2015-12-03

Method for manufacturing sealed battery

#161
20150333378
2015-11-19

Traction battery leakage detection system for electrified vehicle

#162
20150255832
2015-09-10

Method for manufacturing sealed battery

#163
20150207182
2015-07-23

Method of manufacturing battery

#164
20150155603
2015-06-04

Method for manufacturing sealed battery

#165
20150147607
2015-05-28

Insulating container for battery, battery control device, and battery-failure detection method

#166
20150132670
2015-05-14

Air cell cartridge and air cell system

#167
20150132620
2015-05-14

Safety sensor system for an electrochemical storage system

#168
20150093614
2015-04-02

Secondary-battery system and secondary-battery-failure-detection system

#169
20150090009
2015-04-02

Method and device for localizing a defect in an electrochemical store and defect localization system

#170
20150040646
2015-02-12

METHOD FOR EVALUATING THE SEALING OF A BIPOLAR STRUCTURE FOR AN ELECTROCHEMICAL GENERATOR

#171
20140332085
2014-11-13

Self-activated draining system

#172
20140283371
2014-09-25

Method for manufacturing sealed battery

#173
20140072843
2014-03-13

ELECTROCHEMICAL ENERGY STORE

#174
20140058687
2014-02-27

High voltage bus-to-chassis isolation resistance and Y-capacitance measurement

#175
20140038006
2014-02-06

Device and Method for Checking the Leak-Tightness of an Electrochemical Energy Accumulator

#176
20140020763
2014-01-23

Systems and methods for mitigating battery damage caused by coolant leaks

#177
20130183552
2013-07-18

Battery pack system and liquid leakage detection method thereof

#178
20130181826
2013-07-18

Battery pack and liquid leakage detection method thereof

#179
20130141571
2013-06-06

Airtightness inspection method and airtightness inspection apparatus for sealed battery

#180
20130078484
2013-03-28

Battery unit

#181
20130061661
2013-03-14

Non-destructive method for testing the seal of an electrolyte of an electrochemical cell

#182
20120280820
2012-11-08

Leak sensor for flowing electrolyte batteries

#183
20120251859
2012-10-04

BATTERY PACK HAVING LIQUID LEAK DETECTION SYSTEM

#184
20120148888
2012-06-14

Secondary battery

#185
20120105220
2012-05-03

Method and apparatus for monitoring a vehicular propulsion system battery

#186
20120038365
2012-02-16

LIQUID LEAKAGE PROPAGATION RESTRAINING STRUCTURE FOR ELECTRICITY STORAGE DEVICE AND BUS BAR MODULE

#187
20110316710
2011-12-29

Detecting device and battery box using the same

#188
20110271743
2011-11-10

Method for detecting a leak in flowing electrolyte batteries

#189
20110258845
2011-10-27

Method of assembling electric storage battery packs

#190
20110250495
2011-10-13

Electrolyte Composition Electrochemical Cell Including A Contrast Agent And Method For Manufacturing Cells Using Same

#191
20110189511
2011-08-04

Battery system and driving method thereof

#192
20100102975
2010-04-29

BATTERY LEAKAGE DETECTION SYSTEM

#193
20100035130
2010-02-11

ELECTROLYTE WITH INDICATOR

#194
20090251159
2009-10-08

Device and method for analyzing defects, particularly for items made of plastics

#195
20090044602
2009-02-19

Apparatus for detecting sealability of lithium ion cell

#196
20080137807
2008-06-12

Method for checking for leakage from tubular batteries

#197
20080050646
2008-02-28

Leak sensor for flowing electrolyte batteries

#198
20080024948
2008-01-31

Electrical device and battery pack for preventing polarity reversal of battery

#199
20070275296
2007-11-29

Acid liquid leakage sensor

#200
20070229294
2007-10-04

BATTERY LEAKAGE DETECTION SYSTEM

#201
20060260713
2006-11-23

Method and apparatus for providing a sealed container containing a detectable gas

#202
20060188724
2006-08-24

Liquid absorbing sheet and nonaqueous electrolyte battery pack

#203
20060134511
2006-06-22

Battery, manufacturing method of battery, and check method of electrolyte leakage

#204
20060040177
2006-02-23

Electrochemical cell

#205
20050255381
2005-11-17

Secondary battery

#206
20050118463
2005-06-02

Battery pack

#207
20050079620
2005-04-14

Leak testing of hermetic enclosures for implantable energy storage devices

#208
20050069761
2005-03-31

Electrolyte with indicator

#209
20050022369
2005-02-03

Lithium secondary battery containing a non-aqueous electrolytic solution with a limit on the total concentration of water and hydrofluoric acid

#210
18381067
2025-01-14

Cylindrical lithium-ion battery analyzer determination of the charging and discharging quality condition