CN104051789A - Safe lithium ion power battery and lithium ion battery pack testing method - Google Patents
Safe lithium ion power battery and lithium ion battery pack testing method Download PDFInfo
- Publication number
- CN104051789A CN104051789A CN201310077227.1A CN201310077227A CN104051789A CN 104051789 A CN104051789 A CN 104051789A CN 201310077227 A CN201310077227 A CN 201310077227A CN 104051789 A CN104051789 A CN 104051789A
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- battery group
- safe
- short
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to the field of lithium batteries, and aims to provide a safe lithium ion power battery and a lithium ion battery pack testing method. The safe lithium ion power battery comprises a battery box, a plurality of lithium ion batteries arranged in the battery box in rows, and short circuit protection devices, and the number of the short circuit protection devices is one less than the number of the lithium ion batteries; the lithium ion batteries and the short circuit protection devices are in interval series electrical connection. The safe lithium ion power battery may not produce smoke, fire or explosion caused by external extrusion and vibration and other reasons. The lithium ion battery pack testing method is simple and practical.
Description
Technical field
The present invention relates to lithium battery field, the method for testing of especially a kind of safe lithium ion electrokinetic cell and lithium ion battery group.
Background technology
For overcoming energy shortage and reducing environmental pollution, lithium ion battery because its energy density is high, have extended cycle life, the advantage such as green non-pollution has good prospect as automobile power; Lithium ion battery makes by layered manner lamination conventionally; Lithium ion battery in use because the reasons such as external compression and vibrations are inner, can produce high temperature and short circuit causes smoldering, catches fire or explodes, and brings threat to property and personal safety; For guaranteeing lithium ion battery safety in use, need to the fail safe of lithium ion battery, by detecting regulation, carry out single acupuncture sampling Detection by the disclosed lithium ion battery acupuncture of the utility model squeeze test device as Chinese patent notification number CN 202281721U etc.; Conventionally qualified by several single acupuncture sampling Detection and several stacked lithium ion batteries serial connections form for compact conformation as the lithium ion battery group of automobile power; Because capacity after lithium ion battery group serial connection is large, voltage is high, although lithium ion battery group consists of the qualified lithium ion battery serial connection of several single acupuncture sampling Detection, but in use because of reasons such as external compression and vibrations, lithium ion battery group inside still can produce high temperature and short circuit and cause smoldering, catches fire or explode; Therefore, design a kind ofly in use because the reasons such as external compression and vibrations can not produce the safe lithium ion electrokinetic cell of smoldering, catching fire or exploding and the method for testing of lithium ion battery group, become problem demanding prompt solution.
Summary of the invention
The object of the invention is in use because the reasons such as external compression and vibrations are inner, to produce high temperature and short circuit in order to overcome current lithium ion battery group, thereby cause the deficiency of smoldering, catching fire or exploding, provide a kind of in use because the reasons such as external compression and vibrations can not produce the safe lithium ion electrokinetic cell of smoldering, catching fire or exploding and the method for testing of lithium ion battery group.
Concrete technical scheme of the present invention is:
A safe lithium ion electrokinetic cell, comprises battery case, is placed in several lithium ion batteries of in a row arranging in battery case and number than the short-circuit protector of few one of the number of lithium ion battery; Lithium ion battery and short-circuit protector interval are electrically connected in series the lithium ion battery group of formation.When this safe lithium ion electrokinetic cell is used, in use because the reasons such as external compression and vibrations cause between lithium ion battery internal short-circuit and produce amount of heat, short-circuit protector is opened circuit, now, each lithium ion battery in lithium ion battery group is relatively independent, voltage is still single lithium ion battery voltage, and owing to forming, the single acupuncture sampling Detection of lithium ion battery of lithium ion battery group is qualified, and lithium ion battery group also meets safety condition; This safe lithium ion electrokinetic cell is not in use because the reasons such as external compression and vibrations can produce and smolder, catch fire or explode.
As preferably, described short-circuit protector comprises responsive to temperature circuit breaker and the electric current responsive circuit breaker of serial connection.There is high temperature and the fail safe of overcurrent duplicate protection is better.
As preferably, described battery case be provided with for isolate between lithium ion battery or lithium ion battery and short-circuit protector between dividing plate.Dividing plate make between lithium ion battery or lithium ion battery and short-circuit protector between do not bump.
As preferably, described safe lithium ion electrokinetic cell is provided with two two binding posts that are connected with the positive pole of first lithium ion battery and the negative pole of an end lithium ion battery of lithium ion battery group respectively that are placed in battery case; Battery case is provided with lid; Lid be provided with two each with a through hole that binding post is relative.Lid protection lithium ion battery and short-circuit protector do not damage and install and remove conveniently, and through hole facilitates wiring.
The method of testing of the lithium ion battery group of described safe lithium ion electrokinetic cell, (1) several lithium ion batteries are stacked and than the short-circuit protector interval of few one of the number of lithium ion battery, be electrically connected in series formation lithium ion battery group with number; (2) lithium ion battery group is retained on the special fixture of lithium ion battery acupuncture squeeze test device; (3) from the direction perpendicular to lithium ion battery group one end face, with the high temperature resistant draw point of φ 3mm to φ 8mm, with the speed of 10 ~ 40mm/s, thrust an end face of lithium ion battery group and pass the other end of lithium ion battery group, battery pack do not produce smolder, the missing of ignition and lithium ion battery group test passes of not exploding.Lithium ion battery group method of testing is simple and practical.
As preferably, described lithium ion battery group is that five lithium ion batteries are stacked and be electrically connected in series 20Ah lithium ion battery group or 26Ah lithium ion battery group or 35Ah lithium ion battery group or the 100Ah lithium ion battery group of formation with four short-circuit protector intervals; From the direction perpendicular to lithium ion battery group one end face, with diameter, be that the high temperature resistant draw point of φ 5mm thrusts an end face of lithium ion battery group with the speed of 12mm/s and passes the other end of lithium ion battery group, battery pack do not produce smolder, the missing of ignition and lithium ion battery group test passes of not exploding.The sample of the test lithium ion battery group that is regular size and meet safety test regulation.
Compared with prior art, the invention has the beneficial effects as follows: one. this safe lithium ion electrokinetic cell is not in use because the reasons such as external compression and vibrations can produce and smolder, catch fire or explode.Two. dividing plate make between lithium ion battery or lithium ion battery and short-circuit protector between do not bump.Three. lid protection lithium ion battery and short-circuit protector do not damage and install and remove conveniently, and through hole facilitates wiring.Four. short-circuit protector comprises responsive to temperature circuit breaker and the electric current responsive circuit breaker of serial connection.There is high temperature and the fail safe of overcurrent duplicate protection is better.Five. lithium ion battery group method of testing is simple and practical; The sample of the test lithium ion battery group that is regular size and meet safety test regulation.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the schematic diagram of lithium ion battery group test mode.
In figure: battery case-1, dividing plate-11, lid-12, through hole-13, lithium ion battery group-2, lithium ion battery-21, short-circuit protector-3, responsive to temperature circuit breaker-31, electric current responsive circuit breaker-32, binding post-4, high temperature resistant draw point-5, brace-6.
Embodiment
Below in conjunction with shown in accompanying drawing, the present invention is described further.
As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3: a kind of safe lithium ion electrokinetic cell, comprises battery case 1, is placed in several lithium ion batteries 21 of in a row arranging in battery case 1, number is than the short-circuit protector 3 of few one of the number of lithium ion battery 2; Lithium ion battery 21 and short-circuit protector 3 intervals are electrically connected in series the lithium ion battery group 2 of formation.In the present embodiment, lithium ion battery 21 has into five that two rows arrange, and short-circuit protector 3 has four; Five lithium ion batteries 21 and four short-circuit protectors 3 are electrically connected in series and are formed lithium ion battery group 2 by brace 6 intervals.
Described short-circuit protector 3 comprises responsive to temperature circuit breaker 31 and the electric current responsive circuit breaker 32 of serial connection.Responsive to temperature circuit breaker 31 can be thermal cut-off or temperature sense resistance or temperature switch or thermal protector etc.; Electric current responsive circuit breaker 32 can be direct current air switch or tie breaker or fuse etc.; In the present embodiment, responsive to temperature circuit breaker 31 is thermal cut-off; Electric current responsive circuit breaker 32 is tie breaker.
Described battery case 1 have for isolate between lithium ion battery 21 or lithium ion battery 21 and short-circuit protector 3 between dividing plate 11.
Described safe lithium ion electrokinetic cell has two two binding posts 4 that are connected with the positive pole of first lithium ion battery 21 and the negative pole of an end lithium ion battery 21 of lithium ion battery group 2 respectively that are placed in battery case 1; Battery case 1 has lid 12; Lid 12 have two each with a through hole 13 that binding post 4 is relative.
The method of testing of the lithium ion battery group 2 of described safe lithium ion electrokinetic cell, (1) several lithium ion batteries 21 are stacked and than short-circuit protector 3 intervals of few one of the number of lithium ion battery 21, be electrically connected in series formation lithium ion battery group 2 with number; (2) lithium ion battery group 2 is retained on the special fixture of lithium ion battery 21 acupuncture squeeze test devices; (3) from the direction perpendicular to lithium ion battery group 2 one end faces, with the high temperature resistant draw point 5 of φ 3mm to φ 8mm, with the speed of 10 ~ 40mm/s, thrust an end face of lithium ion battery group 2 and pass the other end of lithium ion battery group 2, battery pack do not produce smolder, missing of ignition and lithium ion battery group 2 test passes of not exploding.
In the present embodiment, described lithium ion battery 21 has stacked five, and short-circuit protector 3 has four, and five lithium ion batteries 21 and four short-circuit protector 3 intervals are electrically connected in series and form 35Ah lithium ion battery group 2; From the direction perpendicular to lithium ion battery group 2 one end faces, with diameter, be that the high temperature resistant draw point 5 of φ 5mm thrusts an end face of lithium ion battery group 2 with the speed of 12mm/s and passes the other end of lithium ion battery group 2, battery pack do not produce smolder, missing of ignition and lithium ion battery group 2 test passes of not exploding.
Lithium ion battery group 2 has stacked five and is electrically connected in series formation voltage with four short-circuit protector 3 intervals is the 21V lithium ion battery group 2 of five times of single lithium ion battery 21 voltage 4.2V, during test, draw point pierces through lithium ion battery 21 one by one, 21 of lithium ion batteries are internal short-circuit one by one, now, draw point and external circuit have a large amount of electric currents to pass through, and produce amount of heat, responsive to temperature circuit breaker 31 or the electric current responsive circuit breaker 32 of short-circuit protector 3 are opened circuit one by one, now, each lithium ion battery 21 is relatively independent, voltage is still single lithium ion battery 21 voltage 4.2V, and owing to forming, the single acupuncture sampling Detection of lithium ion battery 21 of lithium ion battery group 2 is qualified, and lithium ion battery group 2 also meets safety condition, in like manner, when this safe lithium ion electrokinetic cell is used, in use because the reasons such as external compression and vibrations cause 21 internal short-circuits of lithium ion battery and produce amount of heat, responsive to temperature circuit breaker 31 or the electric current responsive circuit breaker 32 of short-circuit protector 3 are opened circuit, now, each lithium ion battery 21 in lithium ion battery group 2 is relatively independent, voltage is still single lithium ion battery 21 voltage 4.2V, qualified owing to forming the single acupuncture sampling Detection of lithium ion battery 21 of lithium ion battery group 2, lithium ion battery group 2 also meets safety condition, can not produce and smolder, catch fire or explode.
The invention has the beneficial effects as follows: this safe lithium ion electrokinetic cell is not in use because the reasons such as external compression and vibrations can produce and smolder, catch fire or explode.Dividing plate make between lithium ion battery or lithium ion battery and short-circuit protector between do not bump.Lid protection lithium ion battery and short-circuit protector do not damage and install and remove conveniently, and through hole facilitates wiring.Short-circuit protector comprises responsive to temperature circuit breaker and the electric current responsive circuit breaker of serial connection.There is high temperature and the fail safe of overcurrent duplicate protection is better.Lithium ion battery group method of testing is simple and practical; The sample of the test lithium ion battery group that is regular size and meet safety test regulation.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All so apparent modifications of the technical staff to described field, within being included in the scope of this claim.
Claims (6)
1. a safe lithium ion electrokinetic cell, is characterized in that: comprise battery case, be placed in several lithium ion batteries of in a row arranging in battery case and number than the short-circuit protector of few one of the number of lithium ion battery; Lithium ion battery and short-circuit protector interval are electrically connected in series the lithium ion battery group of formation.
2. safe lithium ion electrokinetic cell according to claim 1, is characterized in that: described short-circuit protector comprises responsive to temperature circuit breaker and the electric current responsive circuit breaker of serial connection.
3. safe lithium ion electrokinetic cell according to claim 1 and 2, is characterized in that: described battery case be provided with for isolate between lithium ion battery or lithium ion battery and short-circuit protector between dividing plate.
4. safe lithium ion electrokinetic cell according to claim 1 and 2, is characterized in that: described safe lithium ion electrokinetic cell is provided with two two binding posts that are connected with the positive pole of first lithium ion battery and the negative pole of an end lithium ion battery of lithium ion battery group respectively that are placed in battery case; Battery case is provided with lid; Lid be provided with two each with a through hole that binding post is relative.
5. the method for testing of the lithium ion battery group of safe lithium ion electrokinetic cell claimed in claim 1, is characterized in that: (1) several lithium ion batteries are stacked and than the short-circuit protector interval of few one of the number of lithium ion battery, be electrically connected in series formation lithium ion battery group with number; (2) lithium ion battery group is retained on the special fixture of lithium ion battery acupuncture squeeze test device; (3) from the direction perpendicular to lithium ion battery group one end face, with the high temperature resistant draw point of φ 3mm to φ 8mm, with the speed of 10 ~ 40mm/s, thrust an end face of lithium ion battery group and pass the other end of lithium ion battery group, battery pack do not produce smolder, the missing of ignition and lithium ion battery group test passes of not exploding.
6. the method for testing of the lithium ion battery group of safe lithium ion electrokinetic cell according to claim 5, is characterized in that: described lithium ion battery group is that five lithium ion batteries are stacked and be electrically connected in series 20Ah lithium ion battery group or 26Ah lithium ion battery group or 35Ah lithium ion battery group or the 100Ah lithium ion battery group of formation with four short-circuit protector intervals; From the direction perpendicular to lithium ion battery group one end face, with diameter, be that the high temperature resistant draw point of φ 5mm thrusts an end face of lithium ion battery group with the speed of 12mm/s and passes the other end of lithium ion battery group, battery pack do not produce smolder, the missing of ignition and lithium ion battery group test passes of not exploding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310077227.1A CN104051789A (en) | 2013-03-12 | 2013-03-12 | Safe lithium ion power battery and lithium ion battery pack testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310077227.1A CN104051789A (en) | 2013-03-12 | 2013-03-12 | Safe lithium ion power battery and lithium ion battery pack testing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104051789A true CN104051789A (en) | 2014-09-17 |
Family
ID=51504353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310077227.1A Pending CN104051789A (en) | 2013-03-12 | 2013-03-12 | Safe lithium ion power battery and lithium ion battery pack testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104051789A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391208A (en) * | 2021-05-27 | 2021-09-14 | 浙江南都电源动力股份有限公司 | Needling test method of lithium battery pack |
| CN114397594A (en) * | 2022-01-17 | 2022-04-26 | 苏州清研精准汽车科技有限公司 | Battery pack detection device and application method |
-
2013
- 2013-03-12 CN CN201310077227.1A patent/CN104051789A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391208A (en) * | 2021-05-27 | 2021-09-14 | 浙江南都电源动力股份有限公司 | Needling test method of lithium battery pack |
| CN114397594A (en) * | 2022-01-17 | 2022-04-26 | 苏州清研精准汽车科技有限公司 | Battery pack detection device and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208674305U (en) | A kind of battery modules | |
| CN206194917U (en) | Detection apparatus for be used for battery safety capability test | |
| CN206584999U (en) | A kind of explosion-proof high security lithium battery for automobile power | |
| CN204885311U (en) | A lithium battery | |
| CN102800901B (en) | Li-ion batteries piles cell classification method for group matching | |
| CN201904409U (en) | Restorable large lithium-ion secondary battery | |
| CN203323906U (en) | Experimental device used for testing lithium battery diaphragm closed pore temperature and damaged diaphragm temperature | |
| CN206489264U (en) | A kind of chargeable energy-storage system thermal runaway and thermal runaway extend synthetic experiment equipment | |
| CN104051789A (en) | Safe lithium ion power battery and lithium ion battery pack testing method | |
| CN104659402A (en) | Power battery bunching module structure of electric automobile | |
| CN205211891U (en) | Large capacity power type lithium ion holds cell | |
| CN203166022U (en) | Safety lithium-ion power battery | |
| CN205692701U (en) | The high-voltage pulse capacitor that a kind of element not group is quick-fried | |
| CN202384424U (en) | Battery module | |
| CN204793058U (en) | Cross and fill explosion -proof lithium cell | |
| CN200941411Y (en) | Battery | |
| CN207097932U (en) | A kind of lithium ion battery module and battery bag | |
| CN103296305B (en) | Lithium ion battery | |
| CN107959046A (en) | A kind of power battery | |
| CN109585769A (en) | A kind of battery output terminal and the battery cover board using the battery output terminal | |
| CN207504024U (en) | A kind of column lithium ion battery group | |
| CN202018502U (en) | Battery explosion protection device | |
| CN203406387U (en) | Lithium battery with high safety | |
| CN205863274U (en) | A kind of Li-ion batteries piles deflector | |
| CN102315396B (en) | Structure of lithium ion battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140917 |