JPH01320761A - Manufacture of positive slurry for battery - Google Patents
Manufacture of positive slurry for batteryInfo
- Publication number
- JPH01320761A JPH01320761A JP63153528A JP15352888A JPH01320761A JP H01320761 A JPH01320761 A JP H01320761A JP 63153528 A JP63153528 A JP 63153528A JP 15352888 A JP15352888 A JP 15352888A JP H01320761 A JPH01320761 A JP H01320761A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- binder
- diluent
- mixture
- slurry
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- 239000003085 diluting agent Substances 0.000 claims abstract description 18
- 239000007774 positive electrode material Substances 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 238000004898 kneading Methods 0.000 claims abstract description 6
- 239000011267 electrode slurry Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 3
- 238000007580 dry-mixing Methods 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 230000002776 aggregation Effects 0.000 description 8
- 239000011162 core material Substances 0.000 description 8
- 238000005054 agglomeration Methods 0.000 description 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 239000006182 cathode active material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/04—Processes of manufacture in general
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、スパイラル形リチウム電池などの正極を構
成する電池用正極スラリーの製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for producing a positive electrode slurry for a battery, which constitutes a positive electrode of a spiral-type lithium battery or the like.
（従来の技術）
スパイラル形電極構造を有するリチウム電池の正極は、
正極スラリーを芯材（集電体）上に塗布し、この後乾燥
工程、圧延工程を経て製造される。(Prior art) The positive electrode of a lithium battery with a spiral electrode structure is
A positive electrode slurry is applied onto a core material (current collector), and then a drying process and a rolling process are performed to produce the positive electrode slurry.
このうちの正極スラリーの製造は、従来以下に示す公知
の手順で行われていた。Among these, the production of the positive electrode slurry has conventionally been carried out using the following known procedure.
始めに粉末状の正極活物質と同じく粉末状の導電材を乾
式混合し、この混合物に希釈剤、結着剤および増粘剤を
湿式条件下で適当な順序で順次加えて混練する。なお、
結着剤としてポリテトラフロオロエチレンの水性ディス
バージョンを用いる場合には、希釈剤を省く場合がある
。First, a powdered cathode active material and a powdered conductive material are dry-mixed, and a diluent, a binder, and a thickener are sequentially added to this mixture in an appropriate order under wet conditions and kneaded. In addition,
When using an aqueous dispersion of polytetrafluoroethylene as a binder, the diluent may be omitted.
また、他の方法としては、正極活物質と導電材を乾式混
合したものに、増粘剤と希釈剤を予め均一に混合したも
のと結着剤を同時或いは順次加えて混練する方法がある
。Another method is to dry-mix a positive electrode active material and a conductive material, add a thickener and a diluent uniformly mixed in advance, and a binder simultaneously or sequentially and knead the mixture.
そして、これらのいずれの製造方法にあっても、最初は
粉末状の正極活物質と導電材を乾式混合し、その後この
混合粉末に湿式条件下で各素材を混合ないし、混練する
ことでスラリーを作るようにしていた。In any of these manufacturing methods, the powdered positive electrode active material and the conductive material are first dry-mixed, and then each material is mixed or kneaded with this mixed powder under wet conditions to form a slurry. I was trying to make it.
（発明が解決しようとする課題）
しかしながら、前記各方法で製造された正極スラリーは
均一性に欠け、以下の■〜■の問題□を派生していた。(Problems to be Solved by the Invention) However, the positive electrode slurries produced by each of the above methods lacked uniformity, leading to the following problems □ to ■.
■芯材上への塗布性が悪く、均一な厚さの正極が得られ
ない。■The coating property on the core material is poor, making it impossible to obtain a positive electrode with uniform thickness.
］
■乾燥、圧延工程で正極合剤が芯材から剥離し、不良が
発生しやすい。] ■During the drying and rolling process, the positive electrode mixture separates from the core material, which tends to cause defects.
■したがって、以上の正極を用いた電池は、放電時にお
ける正極の利用率が悪く、また放電性能のバラツキも大
きい。(2) Therefore, batteries using the above-mentioned positive electrode have a poor utilization rate of the positive electrode during discharge, and also have large variations in discharge performance.
以上の問題を生ずる原因は、結着剤や増粘剤のによるス
ラリーの部分的凝集であり、これによって塗布状態の不
均一が生ずる。また、−度凝集が生じたスラリーは混線
方法、混線時間を変えてその解消を図ったとしてもその
凝集現象を解消することは出来なかった。The cause of the above problems is the partial agglomeration of the slurry due to the binder and thickener, which causes non-uniform coating. In addition, even if attempts were made to eliminate the agglomeration phenomenon by changing the crosstalk method and crosstalk time, it was not possible to eliminate the agglomeration phenomenon in the slurry in which -degree agglomeration occurred.
そこで本発明者らは配合の順序を種々工夫し、結果を検
討したところ、最初に増粘剤を正極活物質および導電剤
とともに乾式混合することで、均一な正極スラリーを得
ることを知見した。Therefore, the present inventors devised various blending orders and examined the results, and found that a uniform positive electrode slurry could be obtained by first dry-mixing the thickener with the positive electrode active material and the conductive agent.
この発明は以上の知見に基づきなされたものであって、
電池の不良率が低く、かつ放電性能を均一、かつ従来よ
り一層向上できるようにしたスパイラル形電池用正極ス
ラリーの製造方法を提供することを目的とするものであ
る。This invention was made based on the above knowledge,
It is an object of the present invention to provide a method for producing a positive electrode slurry for a spiral type battery, which has a low defective rate, uniform discharge performance, and can be further improved than conventional methods.
（課題を解決するための手段）
前記目的を達成するため、この発明は、それぞれ粉末状
の正極活物質、導電材および増粘剤を予め乾式混合し、
その後この混合物に希釈剤と結着剤を別個に、あるいは
希釈剤と結着剤を混合したものを加えて混練するように
したものである。(Means for Solving the Problems) In order to achieve the above object, the present invention includes dry mixing a powdered positive electrode active material, a conductive material, and a thickening agent in advance,
Thereafter, a diluent and a binder are added to this mixture separately or a mixture of a diluent and a binder is added and kneaded.
また、この発明方法では、それぞれ粉末状の正極活物質
、導電材および増粘剤を予め乾式混合し、その後この混
合物に希釈剤を加えて均一に混合し、その後さらに結着
剤を加えて混練するようにできる。In addition, in the method of this invention, the powdered cathode active material, conductive material, and thickener are dry-mixed in advance, and then a diluent is added to this mixture and mixed uniformly, and then a binder is added and kneaded. You can do it like this.
前記正極活物質は一般的に用いられる二酸化マンガンそ
の他の金属酸化物である。The positive electrode active material is a commonly used metal oxide such as manganese dioxide.
前記導電剤は、グラファイトその他のカーボンである。The conductive agent is graphite or other carbon.
増粘剤はポリアクリル酸ソーダ、その他のアクリル系ポ
リマーが用いられる。この増粘剤は粉、来状であって、
希釈剤によって増粘し、スラリーを適度な粘度に調整す
る。As the thickener, sodium polyacrylate and other acrylic polymers are used. This thickener is in the form of a powder,
The slurry is thickened with a diluent and adjusted to an appropriate viscosity.
希釈剤としては水が用いられる。Water is used as a diluent.
結着剤としては、ポリテトラフルオロエチレンの水性デ
ィスバージョンが用いられる。As the binder, an aqueous dispersion of polytetrafluoroethylene is used.
（作 用）
以上の製造方法によれば、従来の乾式混合方法に比べて
、最初に正極活物質および導電材とともに増粘剤を乾式
混合してあり、増粘剤は正極活物質および導電材中に均
一に分散混合されている。(Function) According to the above manufacturing method, compared to the conventional dry mixing method, the thickener is first dry mixed with the positive electrode active material and the conductive material, and the thickener is mixed with the positive electrode active material and the conductive material. are evenly dispersed and mixed.
この状態で他の素材を加えて混練ないし混合することで
、部分凝集を防止でき、均一な粘度のスラリーを３＠る
ことができる。By kneading or mixing other materials in this state, partial agglomeration can be prevented and a slurry of uniform viscosity can be made.
したがって、得られた正極スラリーを芯材に塗布した場
合には、均一な塗布状態となり、塗布不均一による上述
の不具合を除去できる。Therefore, when the obtained positive electrode slurry is applied to the core material, the coating becomes uniform, and the above-mentioned problems caused by non-uniform coating can be eliminated.
（実 施 例）
以下スパイラル形リチウム電池を対象とした実施例につ
き図面を参照して詳細に説明する。(Example) Hereinafter, an example for a spiral-shaped lithium battery will be described in detail with reference to the drawings.
但しこの発明は以下の実施例にのみ限定されるものでな
い。However, this invention is not limited only to the following examples.
［正極スラリーの材料および配合比］
正極活物質二二酸化マンガン＄１ ４．５ｋｇ導
電材 ：グラファイト ０． ５ｋｇ増粘
剤 ：ポリアクリル酸ソーダ系共重合物＊２０ｇ
希釈剤 ：水 ３．３ｇ結着剤
：ポリテトラフルオロエチレン水性ディスバージョ
ン ２８０ ｍｌ＊１・・・二酸化マンガンは、４０
０℃で５時間焼成したものを用いた。[Materials and blending ratio of positive electrode slurry] Positive electrode active material Manganese dioxide $1 4.5 kg Conductive material: Graphite 0. 5kg Thickener: Sodium polyacrylate copolymer *20g Diluent: Water 3.3g Binder: Polytetrafluoroethylene aqueous dispersion 280ml*1...Manganese dioxide is 40g
The sample was fired at 0°C for 5 hours.
＊２・・・商品名レオシック８３５Ｈ（日本純薬株式会
社社製）
［製造方法コ
以上の組成からなる各素材を第１図に示す手順で混合な
いし混練し、正極スラリーを得た。*2...Product name: Rheosic 835H (manufactured by Nippon Pure Chemical Industries, Ltd.) [Manufacturing method] The materials having the above compositions were mixed or kneaded according to the procedure shown in FIG. 1 to obtain a positive electrode slurry.
まず、正極活物質と導電材および増粘剤の粉末の上述す
る量を計量し、これらを混合用容器１の内部に順次投入
し、その後撹拌機２を回転させて乾式混合を行い、次い
で希釈剤の所定量を容器１内に投入し、さらに結着剤の
所定量を容器１内に投入し、撹拌機２の回転によって混
練作業を行い、所定時間経過後に撹拌機２を停止すれば
、正極スラリー３が完成する。First, the above-mentioned amounts of positive electrode active material, conductive material, and thickener powder are weighed, and they are sequentially put into the mixing container 1. Then, the stirrer 2 is rotated to perform dry mixing, and then diluted. If a predetermined amount of the agent is put into the container 1, a predetermined amount of the binder is also put into the container 1, the kneading operation is performed by rotating the stirrer 2, and the stirrer 2 is stopped after a predetermined period of time has elapsed. Positive electrode slurry 3 is completed.
［後加工］
完成した正極スラリー３は、コーティング装置４内に投
入される。コーティング装置４にはガイド４ａか形成さ
れ、このガイド４ａ内を芯材５が通過する。[Post-processing] The completed positive electrode slurry 3 is put into the coating device 4. A guide 4a is formed in the coating device 4, and the core material 5 passes through the guide 4a.
この際に前記正極スラリー３が芯材５の両側に付着し、
ガイド４ａのスリット幅に応じた厚みでコーティングさ
れるのである。At this time, the positive electrode slurry 3 adheres to both sides of the core material 5,
The coating is applied to a thickness corresponding to the slit width of the guide 4a.
コーティングしたのちは連続的に乾燥炉６を通過させて
乾燥固化させた後プレス用ローラ７を通過させることに
よって均一な厚みの正極を形成する。After coating, the material is continuously passed through a drying oven 6 to be dried and solidified, and then passed through a press roller 7 to form a positive electrode having a uniform thickness.
その後定寸カット、正極リード板溶接などの二次加工工
程により正極を完成する。The positive electrode is then completed through secondary processing steps such as cutting to size and welding the positive electrode lead plate.
以上の製造方法によって得られた正極スラリーは部分凝
集がなく、したがってスリット厚みに応じた均一なコー
ティング状態となり、乾燥、圧延工程で正極合剤が芯材
から剥離することがなく、不良の発生率が低下する。The positive electrode slurry obtained by the above manufacturing method has no partial agglomeration, and therefore has a uniform coating according to the slit thickness, and the positive electrode mixture does not peel off from the core material during the drying and rolling processes, reducing the incidence of defects. decreases.
したかって、以上の正極を用いた電池は、放電時におけ
る正極の利用率か向上し、また放電性能のバラツキも小
さなものとなる。Therefore, in a battery using the above positive electrode, the utilization rate of the positive electrode during discharging is improved, and the variation in discharge performance is also reduced.
以上の製造方法による作用機序は明らかではないが、粉
末状の増粘剤が正極活物質および導電剤とともに予め均
一に分散することで部分凝集が未然に防止できることが
確認された。Although the mechanism of action of the above production method is not clear, it has been confirmed that partial aggregation can be prevented by uniformly dispersing the powdered thickener together with the positive electrode active material and the conductive agent in advance.
第２図および以下の表は直径１７ｎｏｎｓ高さ３３゜５
ｍｍのスパイラル形リチウム電池の放電温度２０℃、
放電抵抗８０Ωにおける放電持続時間を従来と本発明と
で比較した結果を示すものであって、図からも明らかな
ように本発明品では放電持続時間が従来より増大し、電
池性能が大巾向上することが確認された。Figure 2 and the table below show diameter 17nons height 33°5
mm spiral type lithium battery discharge temperature 20℃,
This figure shows the results of comparing the discharge duration with the conventional product and the present invention at a discharge resistance of 80Ω.As is clear from the figure, the discharge duration of the present invention product is longer than that of the conventional product, and the battery performance is greatly improved. It was confirmed that
また、以下の表に示すように標準偏差値も小さくなり、
電池性能のバラツキも小さくなることが確認された。In addition, as shown in the table below, the standard deviation value also becomes smaller.
It was confirmed that variations in battery performance were also reduced.
表
２０°Ｃ１８０Ω放電の持続時間
なお、前記実施例では、乾式混合の後に希釈剤、結着剤
を順次投入しながら撹拌し、混練を行ったが、乾式混合
の後は必ずしもその手順だけでなく、例えば予め希釈剤
と結着剤を混合した状態でこれを乾式混合物中に投入し
、混練しても効果は同一である。Table 2: Duration of 180Ω discharge at 20°C In the above example, after dry mixing, the diluent and binder were sequentially added while stirring and kneading. For example, the effect is the same even if the diluent and binder are mixed in advance and added to a dry mixture and kneaded.
（発明の効果）
以上実施例によって詳細に説明したように、この発明に
かかる電池用正極スラリーの製造方法にあっては、従来
の乾式混合方法に比べて、最初に正極活物質および導電
材とともに増粘剤を乾式混合してあり、増粘剤は正極活
物質および導電材中に均一に分散混合され、この状態で
他の素材を加えて混練ないし混合することで、部分凝集
を防止でき、均一な粘度のスラリーを得ることかできる
。(Effects of the Invention) As described above in detail through Examples, in the method for producing a positive electrode slurry for a battery according to the present invention, compared to the conventional dry mixing method, first the positive electrode active material and the conductive material are mixed together. The thickener is dry-mixed, and the thickener is uniformly dispersed and mixed into the positive electrode active material and conductive material, and by adding other materials in this state and kneading or mixing, partial aggregation can be prevented. It is possible to obtain a slurry of uniform viscosity.
したがって、得られた正極スラリーを芯材に塗布した場
合には、均一な塗布状態となり、塗布不均一による不具
合を除去でき、電池性能を大巾向上出来るとともに、そ
の性能のバラツキを小さくできる。Therefore, when the obtained positive electrode slurry is applied to the core material, it becomes uniformly applied, and defects caused by uneven application can be eliminated, and battery performance can be greatly improved and variations in performance can be reduced.
第１図はこの発明による正極の製造手順を示す説明図、
第２図は本発明と従来との放電性能を比較したグラフで
ある。FIG. 1 is an explanatory diagram showing the manufacturing procedure of a positive electrode according to the present invention;
FIG. 2 is a graph comparing the discharge performance of the present invention and the conventional method.
Claims (2)
剤を予め乾式混合し、その後この混合物に希釈剤と結着
剤を別個に、あるいは希釈剤と結着剤を混合したものを
加えて混練することを特徴とする電池用正極スラリーの
製造方法。(1) Dry mix the powdered positive electrode active material, conductive material, and thickener in advance, and then add a diluent and binder separately or a mixture of the diluent and binder to this mixture. A method for producing a positive electrode slurry for a battery, which comprises kneading the slurry using the following methods.
剤を予め乾式混合し、その後この混合物に希釈剤を加え
て均一に混合し、その後さらに結着剤を加えて混練する
ことを特徴とする請求項１に記載の電池用正極スラリー
の製造方法。(2) The positive electrode active material, the conductive material, and the thickener, each in powder form, are dry-mixed in advance, then a diluent is added to this mixture and mixed uniformly, and then a binder is further added and kneaded. The method for producing a battery positive electrode slurry according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63153528A JPH01320761A (en) | 1988-06-23 | 1988-06-23 | Manufacture of positive slurry for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63153528A JPH01320761A (en) | 1988-06-23 | 1988-06-23 | Manufacture of positive slurry for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01320761A true JPH01320761A (en) | 1989-12-26 |
Family
ID=15564497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63153528A Pending JPH01320761A (en) | 1988-06-23 | 1988-06-23 | Manufacture of positive slurry for battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01320761A (en) |
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|---|---|---|---|---|
| KR20020024470A (en) * | 2000-09-25 | 2002-03-30 | 변동호 | Manufacturing apparatus of slurry for battery |
| CN103456966A (en) * | 2013-08-29 | 2013-12-18 | 山东驰翔新能源科技有限公司 | Slurry mixing process for manufacturing lithium ion battery |
| EP2700443A1 (en) | 2012-08-23 | 2014-02-26 | Jtekt Corporation | Kneading device and kneading method for electricity storage material |
| CN107004838A (en) * | 2014-12-24 | 2017-08-01 | Nec 能源元器件株式会社 | Preparation method for the paste for preparing negative pole, the preparation method of negative pole for lithium rechargeable battery, negative pole and lithium rechargeable battery for lithium rechargeable battery |
| WO2017154776A1 (en) * | 2016-03-08 | 2017-09-14 | Ｎｅｃエナジーデバイス株式会社 | Thickener powder for lithium ion cell, aqueous electrode slurry, electrode for lithium ion cell, lithium ion cell, method for manufacturing aqueous electrode slurry for lithium ion cell, and method for manufacturing electrode for lithium ion cell |
| JP2018181585A (en) * | 2017-04-12 | 2018-11-15 | Fdk株式会社 | Manufacturing method of positive electrode material for lithium primary battery, positive electrode material for lithium primary battery, and lithium primary battery |
| JP2019523973A (en) * | 2016-06-07 | 2019-08-29 | ユニヴェルシテ ド リエージュＵｎｉｖｅｒｓｉｔｅ Ｄｅ Ｌｉｅｇｅ | Method for producing an electrode for an electrochemical storage device |
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-
1988
- 1988-06-23 JP JP63153528A patent/JPH01320761A/en active Pending
Cited By (15)
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| EP2700443A1 (en) | 2012-08-23 | 2014-02-26 | Jtekt Corporation | Kneading device and kneading method for electricity storage material |
| CN103456966A (en) * | 2013-08-29 | 2013-12-18 | 山东驰翔新能源科技有限公司 | Slurry mixing process for manufacturing lithium ion battery |
| US20170331110A1 (en) * | 2014-12-24 | 2017-11-16 | Nec Energy Devices, Ltd. | Method of producing paste for production of negative electrode, method of producing negative electrode for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery |
| JPWO2016104315A1 (en) * | 2014-12-24 | 2017-10-05 | Ｎｅｃエナジーデバイス株式会社 | Method for producing paste for negative electrode production, method for producing negative electrode for lithium ion secondary battery, negative electrode for lithium ion secondary battery and lithium ion secondary battery |
| CN107004838A (en) * | 2014-12-24 | 2017-08-01 | Nec 能源元器件株式会社 | Preparation method for the paste for preparing negative pole, the preparation method of negative pole for lithium rechargeable battery, negative pole and lithium rechargeable battery for lithium rechargeable battery |
| JP2020074292A (en) * | 2014-12-24 | 2020-05-14 | 株式会社エンビジョンＡｅｓｃエナジーデバイス | Manufacturing method of paste anode manufacturing precursor, manufacturing method of anode manufacturing paste, manufacturing method of anode for lithium ion secondary battery, and manufacturing method of lithium ion secondary battery |
| US10700356B2 (en) * | 2014-12-24 | 2020-06-30 | Envision Aesc Energy Devices Ltd. | Method for producing paste for production of negative electrodes, method for producing negative electrode for lithium ion secondary batteries, negative electrode for lithium secondary batteries, and lithium ion secondary battery |
| CN107004838B (en) * | 2014-12-24 | 2020-08-14 | 远景Aesc能源元器件有限公司 | Method for preparing paste for preparing negative electrode |
| WO2017154776A1 (en) * | 2016-03-08 | 2017-09-14 | Ｎｅｃエナジーデバイス株式会社 | Thickener powder for lithium ion cell, aqueous electrode slurry, electrode for lithium ion cell, lithium ion cell, method for manufacturing aqueous electrode slurry for lithium ion cell, and method for manufacturing electrode for lithium ion cell |
| JPWO2017154776A1 (en) * | 2016-03-08 | 2019-01-10 | Ｎｅｃエナジーデバイス株式会社 | Thickener powder for lithium ion battery, aqueous electrode slurry, electrode for lithium ion battery, lithium ion battery, method for producing aqueous electrode slurry for lithium ion battery, and method for producing electrode for lithium ion battery |
| US11329289B2 (en) | 2016-03-08 | 2022-05-10 | Envision Aesc Japan Ltd. | Thickener powder for lithium-ion battery, water-based electrode slurry, electrode for lithium-ion battery, lithium-ion battery, method for manufacturing water-based electrode slurry for lithium-ion battery, and method for manufacturing electrode for lithium-ion battery |
| JP2019523973A (en) * | 2016-06-07 | 2019-08-29 | ユニヴェルシテ ド リエージュＵｎｉｖｅｒｓｉｔｅ Ｄｅ Ｌｉｅｇｅ | Method for producing an electrode for an electrochemical storage device |
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