WO2016208869A1 - 리튬 이차전지용 전해동박 및 이를 포함하는 리튬 이차전지 - Google Patents
리튬 이차전지용 전해동박 및 이를 포함하는 리튬 이차전지 Download PDFInfo
- Publication number
- WO2016208869A1 WO2016208869A1 PCT/KR2016/004924 KR2016004924W WO2016208869A1 WO 2016208869 A1 WO2016208869 A1 WO 2016208869A1 KR 2016004924 W KR2016004924 W KR 2016004924W WO 2016208869 A1 WO2016208869 A1 WO 2016208869A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lithium secondary
- copper foil
- electrolytic copper
- secondary battery
- heat treatment
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- 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
Definitions
- the present invention relates to an electrolytic copper foil for a lithium secondary battery and a lithium secondary battery comprising the same, and more specifically, wrinkles may be generated in a non-coated portion after coating in a battery manufacturing process by controlling an increase rate of an increase in stretching ratio with respect to a heat treatment temperature in a certain range. It relates to an electrolytic copper foil for a lithium secondary battery and a lithium secondary battery comprising the same.
- Lithium secondary battery has many advantages such as high energy density, high operating voltage and excellent storage and lifespan characteristics compared to other secondary batteries, which can be used for personal computers, camcorders, portable phones, portable CD players, PDAs, etc. Widely used in portable electronic devices.
- a lithium secondary battery has a structure including a positive electrode and a negative electrode disposed with an electrolyte interposed therebetween, wherein the positive electrode has a structure in which a positive electrode active material is attached to a positive electrode current collector, and the negative electrode has a negative electrode active material attached to a negative electrode current collector.
- the positive electrode has a structure in which a positive electrode active material is attached to a positive electrode current collector
- the negative electrode has a negative electrode active material attached to a negative electrode current collector.
- an electrolytic copper foil is mainly used as a material of a negative electrode current collector, and such an electrolytic copper foil has excellent physical properties so that the performance of the secondary battery can be maintained even if severe conditions are repeatedly formed in the secondary battery according to charging and discharging of the secondary battery.
- the electrolytic copper foil should have, for example, no tearing occurs even if the harsh conditions resulting from charging and discharging are repeated.
- the present invention was made in accordance with the above technical request, and an object of the present invention is to obtain an electrolytic copper foil for a lithium secondary battery that can maintain excellent quality in a manufacturing process and a use process of a lithium secondary battery.
- the present inventors continued to solve the above-described technical problem, and as a result, the electrolytic copper foil and the secondary battery manufactured by using the current collector to control the increase rate of the stretching ratio with respect to the heat treatment temperature to a certain range to ensure excellent quality I figured it out.
- the electrolytic copper foil for a lithium secondary battery is an electrolytic copper foil for a lithium secondary battery applied as a negative electrode current collector of a lithium secondary battery, and a heat treatment temperature value and a variable y of an electrolytic copper foil for a lithium secondary battery corresponding to a variable x on a xy two-dimensional graph.
- the said a value corresponds to 0.0009-0.0610 range.
- the elongation measured after the heat treatment of the electrolytic copper foil for lithium secondary batteries at 100 ° C. for 30 minutes may be 3% or more.
- the said electrolytic copper foil for lithium secondary batteries can be equipped with the antirust layer containing any 1 or more types of chromium (Cr), a silane compound, and a nitrogen compound on both surfaces.
- the thickness of the electrolytic copper foil for lithium secondary batteries may range from 3 ⁇ m to 30 ⁇ m.
- Surface roughness of both surfaces of the electrolytic copper foil for the lithium secondary battery may be 3.5 ⁇ m or less based on Rz.
- the lithium secondary battery according to an embodiment of the present invention the lithium secondary battery electrolytic copper foil according to an embodiment of the present invention is applied as a negative electrode current collector.
- wrinkles may be prevented from occurring in the battery manufacturing process of the lithium secondary battery electrolytic copper foil, and the lithium secondary battery applied to the lithium secondary battery electrolytic copper foil as the negative electrode current collector undergoes repeated charge and discharge. It is possible to prevent the tearing phenomenon of the electrolytic copper foil in the process.
- FIG. 1 is a cross-sectional view showing an electrolytic copper foil for a lithium secondary battery according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing a state in which a coating layer is formed on a surface of an electrolytic copper foil for a lithium secondary battery according to an embodiment of the present invention.
- FIG. 3 is an x-y two-dimensional graph calculated by setting a heat treatment temperature value of an electrolytic copper foil for a lithium secondary battery according to an embodiment of the present invention to x and a draw ratio of increasing ratio at a specific temperature as y.
- FIG. 4 is a photograph showing a case in which wrinkles occur in the electrolytic copper foil for lithium secondary batteries and a case where they do not occur in the battery manufacturing process.
- FIG. 1 is a cross-sectional view showing an electrolytic copper foil for a lithium secondary battery according to an embodiment of the present invention.
- Electrolytic copper foil 1 for a lithium secondary battery according to an embodiment of the present invention shown in FIG. 1 is preferably used as a negative electrode current collector of a lithium secondary battery. That is, in a lithium secondary battery, it is preferable that an electrolytic copper foil is used as a negative electrode collector couple
- a foil made of aluminum (Al) is generally used as a positive electrode current collector combined with the positive electrode active material.
- the case where the said electrolytic copper foil 1 for lithium secondary batteries corresponds to the negative electrode electrical power collector applied to a lithium secondary battery is demonstrated as an example.
- the thermal history that the electrolytic copper foil 1 for lithium secondary batteries receives in the manufacturing process of a lithium secondary battery is 100-100 degreeC normally. In this process, the elongation of the copper foil must be maintained at an appropriate level to prevent the occurrence of wrinkles on the non-woven portion in the process and the tearing of the electrolytic copper foil during the charge and discharge process after fabricating the lithium secondary battery.
- a plurality of heat treatments are required a plurality of times, preferably three or more times at approximately constant temperature intervals in the above-described temperature range of 100 ° C to 200 ° C.
- the 5 point heat treatment method is taken as an example, it is also possible to further reduce or further increase the cumulative heat treatment times for deriving a correlation between the heat treatment temperature and the stretching ratio.
- the range of the value a is maintained to be approximately 0.0009 to 0.0610.
- tearing of the electrolytic copper foil may occur during the charging and discharging process of the secondary battery, and when the a value exceeds 0.0610, wrinkles may occur on the non-coated portion of the electrolytic copper foil.
- the electrolytic copper foil 1 for a lithium secondary battery maintains such a value range, in the process of producing a lithium secondary battery, wrinkles are generated on the uncoated portion of the electrolytic copper foil and / or repeated charging and discharging of the completed lithium secondary battery. It is possible to prevent the occurrence of the tear of the electrolytic copper foil applied to the current collector, it is possible to improve the quality of the electrolytic copper foil and the lithium secondary battery.
- the electrolytic copper foil 1 for a lithium secondary battery according to an embodiment of the present invention satisfies the a-value range as described above, so that the elongation measured after heat treatment at about 100 ° C. for about 30 minutes is about 3.0% or more. It is preferred to be prepared.
- the surface roughness of both surfaces of the lithium secondary battery electrolytic copper foil (1) according to an embodiment of the present invention is preferably about 0.2 ⁇ m to 3.5 ⁇ m based on Rz (ten point average roughness).
- the surface roughness exceeds approximately 3.5 ⁇ m, uniform coating of the active material may not be performed on the surface 1a of the electrolytic copper foil due to the high roughness, and thus the adhesion may be lowered. If not, the discharge capacity retention rate of the manufactured lithium secondary battery may decrease.
- the thickness of the said electrolytic copper foil 1 for lithium secondary batteries is about 3 micrometers-30 micrometers.
- the thickness of the electrodeposited copper foil is too thin, less than about 3 ⁇ m, handling of the electrodeposited copper foil becomes difficult in the battery manufacturing process, and thus workability may be degraded. On the contrary, when the thickness of the electrodeposited copper foil exceeds about 30 ⁇ m, the electrodeposited copper foil may be collected. When used as a whole, there is a problem in that it becomes difficult to manufacture a high capacity battery due to the increase in volume due to the thickness of the current collector.
- an electrolytic copper foil 1 for a lithium secondary battery may include an antirust layer 2 formed on the surface 1a thereof.
- the rustproof layer (2) is selectively formed on the surface (1a) of the electrolytic copper foil for the rust prevention treatment of the electrolytic copper foil (1) for lithium secondary battery, and contains any one or more of chromium (Cr), a silane compound and a nitrogen compound. can do.
- the rustproof layer 2 may play a role of imparting not only rustproof properties to the electrolytic copper foil 1 for lithium secondary batteries, but also heat resistance and / or increasing bonding strength with the active material.
- An electrolytic copper foil for a lithium secondary battery according to an embodiment and a comparative example is manufactured by using a milling machine having a structure including a positive electrode plate positioned at a predetermined interval with respect to a rotating drum and a drum in an electrolytic cell. At this time, the distance between the anode plate and the rotating drum is adjustable in the range of approximately 5 to 20mm, the standard deviation of the interval should be controlled within 2mm.
- Copper sulfate may be used as the electrolyte in the milling process using the mill, and as an organic additive, gelatin, HEC (Hydroxyethyl Cellulse), sulfide-based compounds, and nitrides may be used as additives or organic additives may not be used.
- gelatin Hydrophilethyl Cellulse
- HEC Hydrophilethyl Cellulse
- sulfide-based compounds sulfide-based compounds
- nitrides may be used as additives or organic additives may not be used.
- the conditions under which the concentration of TOC is 1 g / L or less and / or the Ag concentration is 0.5 g / L or less in copper sulfate containing 50 to 100 g / L copper and 50 to 150 g / L sulfuric acid The electrolytic copper foil for lithium secondary batteries which correspond to an Example is manufactured by manufacturing an electrolytic copper foil under the conditions and the conditions whose current density applied at the time of electrodeposition of copper foil is 30ASD-80ASD, and the temperature of electrolyte solution is 40-70 degreeC.
- an electrolytic copper foil for a lithium secondary battery according to a comparative example a method different from the above-described manufacturing method is applied, specifically, copper sulfate (50 ⁇ 100g / L copper, 50 used as the electrolyte solution in the process of weaving
- concentration of TOC in ⁇ 150 g / L sulfuric acid is 1 g / L or more, and / or the condition in which the Ag concentration in the electrolyte exceeds 0.5 g / L, and / or the current density applied at the electrodeposition of copper foil is from 30 ASD to
- composition and conditions of the specific electrolyte solution for milling the electrolytic copper foil which concerns on an Example and a comparative example are as follows.
- -5 point heat treatment method measure elongation after heat treatment at 100 ° C for 30 minutes, elongate 100 ° C for 30 minutes, measure elongation at 125 ° C for 30 minutes, and elongation at 100 ° C for 30 minutes and 125 ° C for 30 minutes.
- the elongation of the sample which was continuously heat-treated again at 150 ° C. for 30 minutes was measured, and the elongation of the sample subjected to additional cumulative heat treatment was further measured at 175 ° C. and 200 ° C., respectively. From the measured draw ratio values, a is obtained.
- Elongation increase ratio Elongation measured after heat treatment in the range of 100 to 200 ° C. The value obtained by dividing by elongation measured after heat treatment at 100 ° C.
- Example 1 Comparative Example 1, Example 2, Comparative Example 2, Example 3 and Comparative Example 3 in Table 2
- the elongation measured for the electrolytic copper foil subjected to heat treatment at 100 ° C. for 30 minutes was at least It can be seen that the quality reliability of the electrolytic copper foil can be maintained at least 3%.
- the range of a value measured for the electrolytic copper foil for lithium secondary battery and the elongation measured after heat treatment at about 100 ° C. for about 30 minutes are approximately 0.0009 ⁇ a ⁇ 0.0610 and elongation ⁇ 3.0 It can be seen that the product reliability of the electrolytic copper foil and / or the lithium secondary battery manufactured using the same may be maintained when the% is satisfied.
- the present invention relates to an electrolytic copper foil for a lithium secondary battery, which is a negative electrode current collector material applied to a lithium secondary battery, and a lithium secondary battery including the same.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
TOC(g/L) | Ag(g/L) | 전류밀도(ASD) | |
실시예 1 | 0.6 | 0.4 | 40 |
실시예 2 | 0.3 | 0.4 | 40 |
실시예 3 | 0.5 | 0.2 | 50 |
실시예 4 | 0.7 | 0.1 | 50 |
실시예 5 | 0.8 | 0.3 | 60 |
실시예 6 | 0.3 | 0.2 | 60 |
비교예 1 | 1.2 | 0.4 | 30 |
비교예 2 | 1.5 | 0.2 | 40 |
비교예 3 | 1.7 | 0.2 | 40 |
비교예 4 | 2 | 0.4 | 50 |
비교예 5 | 0.5 | 1 | 60 |
비교예 6 | 0.7 | 0.4 | 20 |
비교예 7 | 0.6 | 0.7 | 80 |
a값 | 100℃, 30분 열처리후 연신율 [%] | 전지 제조 공정 불량 발생 여부 | 충방전시 동박 찢김 | |
실시예 1 | 0.0009 | 3.2 | 주름 없음 | 찢김 없음 |
실시예 2 | 0.0280 | 3.2 | 주름 없음 | 찢김 없음 |
실시예 3 | 0.0610 | 3.1 | 주름 없음 | 찢김 없음 |
실시예 4 | 0.0009 | 8.9 | 주름 없음 | 찢김 없음 |
실시예 5 | 0.0280 | 9.4 | 주름 없음 | 찢김 없음 |
실시예 6 | 0.0610 | 9.1 | 주름 없음 | 찢김 없음 |
비교예 1 | 0.0009 | 2.9 | 찢김 발생 | 제조 불가 |
비교예 2 | 0.0280 | 2.9 | 찢김 발생 | 제조 불가 |
비교예 3 | 0.0610 | 2.8 | 찢김 발생 | 제조 불가 |
비교예 4 | 0.0008 | 3.2 | 주름 없음 | 찢김 발생 |
비교예 5 | 0.0620 | 9.3 | 주름 발생 | 제조 불가 |
비교예 6 | 0.0008 | 2.9 | 찢김 발생 | 제조 불가 |
비교예 7 | 0.0620 | 2.9 | 찢김 발생 | 제조 불가 |
Claims (6)
- 리튬 이차전지의 음극 집전체로 적용되는 리튬 이차전지용 전해동박에 있어서,x-y 이차원 그래프 상에서 변수 x에 해당하는 리튬 이차전지용 전해동박의 열처리 온도 값과 변수 y에 해당하는 리튬 이차전지용 전해동박의 연신 증가비 값의 상관 관계를 y = ax + b (100 ≤ x ≤ 200) 과 같이 나타내었을 때,상기 a 값은 0.0009 내지 0.0610 범위인 것을 특징으로 하는 리튬 이차전지용 전해동박.
- 제1항에 있어서,상기 리튬 이차전지용 전해동박을 100℃에서 30분 열처리 한 후에 측정된 연신율은 3% 이상인 것을 특징으로 하는 리튬 이차전지용 전해동박.
- 제1항 또는 제2항에 있어서,상기 리튬 이차전지용 전해동박은,양 면 상에 크롬(Cr), 실란 화합물 및 질소 화합물 중 어느 1종 이상을 함유하는 방청 층을 구비하는 것을 특징으로 하는 리튬 이차전지용 전해동박.
- 제1항 또는 제2항에 있어서,상기 리튬 이차전지용 전해동박의 두께는 3㎛ 내지 30㎛ 인 것을 특징으로 하는 리튬 이차전지용 전해동박.
- 제1항 또는 제2항에 있어서,상기 리튬 이차전지용 전해동박의 양 면의 표면조도는 Rz 기준으로 3.5㎛ 이하인 것을 특징으로 하는 리튬 이차전지용 전해동박.
- 제1항 또는 제2항에 따른 리튬 이차전지용 전해동박이 음극 집전체로 적용된 리튬 이차전지.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/315,765 US10530007B2 (en) | 2015-06-23 | 2016-05-11 | Electrolytic copper foil for lithium secondary battery and lithium secondary battery comprising the same |
CN201680000864.0A CN107078304B (zh) | 2015-06-23 | 2016-05-11 | 用于锂二次电池的电解铜箔及包含该电解铜箔的锂二次电池 |
PL16814582T PL3316364T3 (pl) | 2015-06-23 | 2016-05-11 | Elektrolityczna folia miedziana do akumulatora litowego oraz zawierający ją akumulator litowy |
JP2017565755A JP6581219B2 (ja) | 2015-06-23 | 2016-05-11 | リチウム二次電池用の電解銅箔及びこれを含むリチウム二次電池 |
EP16814582.9A EP3316364B1 (en) | 2015-06-23 | 2016-05-11 | Electrolytic copper foil for lithium secondary battery and lithium secondary battery including same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20150088927 | 2015-06-23 | ||
KR10-2015-0088927 | 2015-06-23 | ||
KR1020160044805A KR102130011B1 (ko) | 2015-06-23 | 2016-04-12 | 리튬 이차전지용 전해동박 및 이를 포함하는 리튬 이차전지 |
KR10-2016-0044805 | 2016-04-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016208869A1 true WO2016208869A1 (ko) | 2016-12-29 |
Family
ID=57585854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2016/004924 WO2016208869A1 (ko) | 2015-06-23 | 2016-05-11 | 리튬 이차전지용 전해동박 및 이를 포함하는 리튬 이차전지 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2016208869A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111670269A (zh) * | 2018-02-01 | 2020-09-15 | Kcf技术有限公司 | 具有高温尺寸稳定性和织构稳定性的电解铜箔及其制造方法 |
JP2020530878A (ja) * | 2017-07-31 | 2020-10-29 | ケイシーエフ テクノロジース カンパニー リミテッド | しわの発生が防止された銅箔、それを含む電極、それを含む二次電池、及びその製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000182623A (ja) * | 1998-12-11 | 2000-06-30 | Nippon Denkai Kk | 電解銅箔、二次電池の集電体用銅箔及び二次電池 |
JP2013175488A (ja) * | 2013-06-12 | 2013-09-05 | Ls Mtron Ltd | リチウム二次電池の集電体用銅箔 |
KR20140007507A (ko) * | 2010-07-01 | 2014-01-17 | 미쓰이금속광업주식회사 | 전해 동박 및 그 제조 방법 |
KR20140084216A (ko) * | 2011-10-31 | 2014-07-04 | 후루카와 덴키 고교 가부시키가이샤 | 고강도, 고내열 전해 동박 및 그 제조방법 |
KR20150062227A (ko) * | 2013-11-28 | 2015-06-08 | 일진머티리얼즈 주식회사 | 전해동박, 이를 포함하는 전기부품 및 전지, 및 전해동박 제조방법 |
-
2016
- 2016-05-11 WO PCT/KR2016/004924 patent/WO2016208869A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000182623A (ja) * | 1998-12-11 | 2000-06-30 | Nippon Denkai Kk | 電解銅箔、二次電池の集電体用銅箔及び二次電池 |
KR20140007507A (ko) * | 2010-07-01 | 2014-01-17 | 미쓰이금속광업주식회사 | 전해 동박 및 그 제조 방법 |
KR20140084216A (ko) * | 2011-10-31 | 2014-07-04 | 후루카와 덴키 고교 가부시키가이샤 | 고강도, 고내열 전해 동박 및 그 제조방법 |
JP2013175488A (ja) * | 2013-06-12 | 2013-09-05 | Ls Mtron Ltd | リチウム二次電池の集電体用銅箔 |
KR20150062227A (ko) * | 2013-11-28 | 2015-06-08 | 일진머티리얼즈 주식회사 | 전해동박, 이를 포함하는 전기부품 및 전지, 및 전해동박 제조방법 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020530878A (ja) * | 2017-07-31 | 2020-10-29 | ケイシーエフ テクノロジース カンパニー リミテッド | しわの発生が防止された銅箔、それを含む電極、それを含む二次電池、及びその製造方法 |
US11505873B2 (en) | 2017-07-31 | 2022-11-22 | Sk Nexilis Co., Ltd. | Copper foil free from generation of wrinkles, electrode comprising the same, secondary battery comprising the same and method for manufacturing the same |
JP7343474B2 (ja) | 2017-07-31 | 2023-09-12 | エスケー ネクシリス カンパニー リミテッド | しわの発生が防止された銅箔、それを含む電極、それを含む二次電池、及びその製造方法 |
CN111670269A (zh) * | 2018-02-01 | 2020-09-15 | Kcf技术有限公司 | 具有高温尺寸稳定性和织构稳定性的电解铜箔及其制造方法 |
JP2021512214A (ja) * | 2018-02-01 | 2021-05-13 | エスケー ネクシリス カンパニー リミテッド | 高温寸法安全性及び集合組職安全性を有する電解銅箔及びその製造方法 |
US11346015B2 (en) * | 2018-02-01 | 2022-05-31 | Kcf Technologies Co., Ltd. | Electrolytic copper foil having high-temperature dimensional stability and texture stability, and manufacturing method therefor |
JP7083029B2 (ja) | 2018-02-01 | 2022-06-09 | エスケー ネクシリス カンパニー リミテッド | 高温寸法安全性及び集合組職安全性を有する電解銅箔及びその製造方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016208858A1 (ko) | 리튬 이차전지용 전해동박 및 이를 포함하는 리튬 이차전지 | |
WO2013154253A1 (ko) | 다공성 코팅층을 포함하는 전극, 상기 전극의 제조방법 및 상기 전극을 포함하는 전기화학소자 | |
WO2016165633A1 (en) | Polymer composite membrane and preparation method thereof, gel electrolyte and lithium ion battery having the same | |
WO2017082542A1 (ko) | 전해동박, 그것을 포함하는 전극, 그것을 포함하는 이차전지, 및 그것의 제조방법 | |
WO2015142101A1 (ko) | 전해동박, 이를 포함하는 집전체, 음극 및 리튬전지 | |
WO2011065765A2 (ko) | 세퍼레이터의 제조방법, 이로부터 형성된 세퍼레이터 및 이를 포함하는 전기화학소자 | |
WO2015142100A1 (ko) | 전해동박, 이를 포함하는 집전체, 음극 및 리튬전지 | |
WO2012046966A2 (ko) | 사이클 특성이 개선된 전기화학소자 | |
JP6581219B2 (ja) | リチウム二次電池用の電解銅箔及びこれを含むリチウム二次電池 | |
JP6584531B2 (ja) | リチウム二次電池用の電解銅箔及びこれを含むリチウム二次電池 | |
WO2018088642A1 (ko) | 이차전지용 전해동박 및 그의 제조방법 | |
WO2016114474A1 (ko) | 전극용 슬러리 조성물, 전극 및 이차전지 | |
WO2016208869A1 (ko) | 리튬 이차전지용 전해동박 및 이를 포함하는 리튬 이차전지 | |
WO2014208926A1 (ko) | 코팅층을 포함하는 분리막 및 상기 분리막을 이용한 전지 | |
WO2021033795A1 (ko) | 그래핀을 포함하는 2차원소재 코팅 조성물과 이를 이용한 이차전지 분리막 및 그 제조방법 | |
WO2019151718A1 (ko) | 후속 공정에서 핸들링 특성이 우수한 전해동박 및 그 제조방법 | |
WO2019151719A1 (ko) | 고온 치수 안정성 및 집합조직 안정성을 갖는 전해동박 및 그 제조방법 | |
WO2018088646A1 (ko) | 이차전지용 전해동박 및 그의 제조방법 | |
WO2018088644A1 (ko) | 저온 물성이 우수한 이차전지용 전해동박 및 그의 제조방법 | |
WO2023219264A1 (ko) | 전해 동박의 제조방법 | |
WO2019045387A1 (ko) | 전해동박, 그의 제조방법 및 그것을 포함하는 고용량 Li 이차전지용 음극 | |
WO2018012902A1 (en) | Electrode and method for manufacturing same | |
WO2016204405A1 (ko) | 리튬 이차전지용 전해동박 및 이를 포함하는 리튬 이차전지 | |
WO2021125410A1 (ko) | 표면처리 동박, 이의 제조방법 및 이를 포함한 이차전지용 음극 | |
WO2018093151A1 (ko) | 양극 활물질 슬러리의 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 15315765 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16814582 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017565755 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2016814582 Country of ref document: EP |