JP2019202310A - Stirring device and stirring device for manufacturing paint for battery electrode - Google Patents
Stirring device and stirring device for manufacturing paint for battery electrode Download PDFInfo
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- JP2019202310A JP2019202310A JP2018147820A JP2018147820A JP2019202310A JP 2019202310 A JP2019202310 A JP 2019202310A JP 2018147820 A JP2018147820 A JP 2018147820A JP 2018147820 A JP2018147820 A JP 2018147820A JP 2019202310 A JP2019202310 A JP 2019202310A
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- 238000003756 stirring Methods 0.000 title claims abstract description 91
- 239000003973 paint Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 34
- 239000006185 dispersion Substances 0.000 claims description 24
- 239000004020 conductor Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 239000011149 active material Substances 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000012257 stirred material Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- 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
- Battery Electrode And Active Subsutance (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
- Inert Electrodes (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
Description
本発明は、分散処理を行うための攪拌装置であって、たとえば、電池用電極材料を含む塗料の製造等に用いられる装置に関する。 The present invention relates to a stirring device for performing a dispersion treatment, for example, a device used for manufacturing a paint including a battery electrode material.
ポータブル電子機器用電源のほか、電気自動車用電源、風力・太陽光発電設備によって発電された電力の蓄積等、リチウムイオン二次電池や燃料電池に代表される電池需要は今後ますます増大することが予測される。また、電池自体の小型化、軽量化、安全性といった特性の一層の向上だけでなく、これら特性を備えた電池を効率的かつ低コストで生産することが要請されている。 In addition to power supplies for portable electronic devices, battery demands such as lithium-ion secondary batteries and fuel cells, such as power sources for electric vehicles and the accumulation of power generated by wind and solar power generation facilities, will increase in the future. is expected. Further, there is a demand not only for further improvement of characteristics such as miniaturization, weight reduction, and safety of the battery itself, but also for efficient and low-cost production of batteries having these characteristics.
この課題を解決する有効な手段として、本願の発明者は、特許文献１に開示された攪拌装置システムを用いて電池電極用塗料等を製造する方法を提案している。
この攪拌装置システムに含まれる攪拌装置はいわゆる高速攪拌機であって、容器とこの容器の内壁面のわずかに内側で高速回転する回転部材とを有する高速攪拌機に連続的に供給し、回転部材による遠心力によって回転部材と内壁面との間に膜状に存在させた攪拌対象物を連続攪拌するというものである。
この攪拌装置等を用いて電池電極用塗料を製造すると、電池の安全性を高度に維持しつつ、電池の高性能化に適した電極用塗料を効率的に製造することができる。
As an effective means for solving this problem, the inventor of the present application has proposed a method for producing a battery electrode paint or the like using the stirring device system disclosed in Patent Document 1.
The stirrer included in this stirrer system is a so-called high-speed stirrer, which is continuously supplied to a high-speed stirrer having a container and a rotating member that rotates at a high speed slightly inside the inner wall surface of the container. The stirring object that is present in the form of a film between the rotating member and the inner wall surface is continuously stirred by force.
When a battery electrode paint is produced using this stirring device or the like, an electrode paint suitable for improving the performance of the battery can be efficiently produced while maintaining a high level of battery safety.
しかしながら、近年、電極用塗料の製造の効率化及び低コスト化の要請がより一層高まりつつある現状を鑑み、本願の発明者が特許文献１に開示された攪拌装置システムを進化させ、さらに電池の安全性を高度に維持しつつ、電池の高性能化に適した電極用塗料を効率的に製造できる方法について鋭意検討したところ、本願発明を完成させるに至った。 However, in recent years, in view of the current situation that demands for increasing the efficiency and cost of manufacturing electrode paints are increasing, the inventors of the present application have evolved the stirring device system disclosed in Patent Document 1 and As a result of intensive studies on a method for efficiently producing a coating material for an electrode suitable for improving the performance of a battery while maintaining a high level of safety, the present invention has been completed.
具体的には、本発明の攪拌装置は、容器と、この容器の内壁面のわずかに内側で高速回転する回転部材とを備え、上記回転部材による遠心力によって上記回転部材と上記内壁面との間に膜状に存在させた攪拌対象を攪拌する攪拌装置であって、上記回転部材及び上記内壁面の上記膜状に存在させた攪拌対象と対向する面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されており、上記容器は、上記攪拌対象を構成する固形成分を投入するための第１投入口、上記攪拌対象を構成する液体を含む非固形成分（例えば、スラリー）を投入する第２投入口、及び上記固形成分と非固形成分を混合した攪拌対象を排出するための排出口を有することを特徴とする。（請求項１）。 Specifically, the stirring device of the present invention includes a container and a rotating member that rotates at a high speed slightly inside the inner wall surface of the container, and the rotating member and the inner wall surface are separated by centrifugal force generated by the rotating member. A stirring device that stirs a stirring target that is present in the form of a film in between, and grooves that are arranged at predetermined intervals on a surface of the rotating member and the inner wall surface that faces the stirring target that is present in the form of a film. The container is formed with irregularities by dimples or protrusions, and the container is provided with a first charging port for charging a solid component constituting the stirring target, and a non-solid component containing a liquid constituting the stirring target (for example, slurry) ), And a discharge port for discharging the stirring target in which the solid component and the non-solid component are mixed. (Claim 1).
好ましくは、上記容器は、上下方向に複数の分散槽に区画されており、 上記分散槽は、それぞれ上記回転部材収容しており、上記各分散槽の回転部材及び内壁面の一部であって、膜状に存在させた攪拌対象と対向する面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されていることを特徴とする（請求項３）。 Preferably, the container is partitioned into a plurality of dispersion tanks in the vertical direction, and each of the dispersion tanks accommodates the rotation member, and is a part of the rotation member and the inner wall surface of each dispersion tank. The surface facing the object to be agitated that is present in the form of a film has irregularities formed by grooves, dimples, or protrusions arranged at predetermined intervals (claim 3).
さらに好ましくは、上記複数の分散槽のうち、最上段に配置される分散槽に上記第１投入口及び第２投入口が形成され、 最下段に配置される分散槽に上記排出口が形成されていることを特徴とする（請求項３）。 More preferably, the first charging port and the second charging port are formed in the dispersing tank disposed at the uppermost stage among the plurality of dispersing tanks, and the discharging port is formed in the dispersing tank disposed at the lowermost stage. (Claim 3).
また、本発明の電池電極用塗料製造用の攪拌装置は、容器と、この容器の内壁面のわずかに内側で高速回転する回転部材とを備え、上記回転部材による遠心力によって上記回転部材と上記内壁面との間に膜状に存在させた攪拌対象である電池電極用塗料の中間材料を攪拌する電池電極用塗料製造用の攪拌装置であって、上記回転部材及び／又は上記内壁面の上記膜状に存在させた攪拌対象と対向する面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されており、上記容器は、上記攪拌対象を構成する活物質を含む固形成分を投入するための第１投入口、上記攪拌対象を構成する導電材のスラリーを含む非固形成分を投入する第２投入口、及び上記固形成分と非固形成分を混合した攪拌対象を排出するための排出口を有することを特徴とする（請求項４） The stirrer for producing the battery electrode paint according to the present invention includes a container and a rotating member that rotates at a high speed slightly inside the inner wall surface of the container, and the rotating member and the above-described rotating member by centrifugal force generated by the rotating member. A stirrer for producing a battery electrode paint that stirs an intermediate material of a battery electrode paint, which is an object to be stirred, present between the inner wall surface and the inner wall surface, wherein the rotating member and / or the inner wall face The surface facing the stirring target that is present in the form of a film has irregularities formed by grooves, dimples, or protrusions arranged at a predetermined interval, and the container is a solid component containing an active material that constitutes the stirring target A first charging port for charging the second stirring port, a second charging port for charging a non-solid component containing a slurry of a conductive material constituting the stirring target, and a stirring target for mixing the solid component and the non-solid component. Outlet Characterized in that it has (claim 4)
上記電池電極用塗料製造用の攪拌装置は、上記導電材がカーボンブラック、カーボンナノチューブ又はグラフェンのいずれかである電池電極用塗料の中間材料に対して適用するのが好ましい（請求項５）。
また、上記電池電極用塗料製造用の攪拌装置は、活物質として非水電解質二次電池用活物質を含む電池電極用塗料の中間材料に対して適用するのが好ましい（請求項６）。
The stirrer for producing the battery electrode paint is preferably applied to an intermediate material of the battery electrode paint in which the conductive material is any one of carbon black, carbon nanotube, or graphene.
Moreover, it is preferable that the stirring device for producing the battery electrode paint is applied to an intermediate material of the battery electrode paint containing an active material for a nonaqueous electrolyte secondary battery as an active material.
上記本発明の攪拌装置によると、攪拌対象である電池電極用塗料を高度に分散させることが可能となる。これにより、上記塗料を用いて電池電極を製造すると、高充填密度であり、かつ抵抗が低減された電極を得ることが可能となる。
また、上記本発明の攪拌装置は、第１投入口から攪拌対象物の固形成分を、第２投入口から撹拌対象物の非固形成分をそれぞれ投入する方式を採用しているため、特許文献１の攪拌装置システムにくらべ、装置を簡素化することができる。
これにより、電池電極用塗料を製造する際のコストを削減することが可能となる。
以上のようにして、電池の安全性を高度に維持しつつ、電池の高性能化に適した電極用塗料を効率的に製造することが可能となる。
According to the stirring device of the present invention, it is possible to highly disperse the battery electrode coating material to be stirred. Thereby, when a battery electrode is manufactured using the said coating material, it becomes possible to obtain an electrode with high filling density and reduced resistance.
In addition, the stirring device of the present invention employs a method in which the solid component of the stirring target is input from the first charging port and the non-solid component of the stirring target is charged from the second charging port. Compared to the stirring device system, the device can be simplified.
Thereby, it becomes possible to reduce the cost at the time of manufacturing the coating material for battery electrodes.
As described above, it is possible to efficiently produce an electrode paint suitable for improving the performance of a battery while maintaining the safety of the battery at a high level.
また、特許文献１に開示された攪拌装置システムを用いて導電材を含む電池電極用塗料を製造する場合、極まれであるが、予備攪拌工程において生成した導電材の凝集物が分散されずにそのまま電池電極用塗料に混入するという問題が生じるが、本発明の電池電極用塗料製造用の攪拌装置を用いて電池電極用塗料を製造すると、上記問題の発生を抑制することができ、さらに長期に亘って導電材の再凝集が抑制される。
この効果は、以下（A）〜（C）の方式の相乗効果により得られる。
（A） 攪拌対象である活物質を含む固形成分及び導電材のスラリーを含む非固形成分が、それぞれ第１投入口または第２投入口を経由して、別々に容器内に投入されること
（B） 容器内に投入された攪拌対象が、容器と、この容器の内壁面のわずかに内側で高速回転する回転部材との間において、回転部材による遠心力によって膜状となった状態で処理されること
（C） 膜状となった状態で処理される攪拌対象が対向する回転部材及び／又は容器内壁面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されていること
Moreover, when manufacturing the coating material for battery electrodes containing a electrically conductive material using the stirring apparatus system disclosed by patent document 1, although rare, the aggregate of the electrically conductive material produced | generated in the preliminary stirring process is not disperse | distributed as it is. The problem of mixing into the battery electrode paint arises, but when the battery electrode paint is produced using the stirring device for producing the battery electrode paint of the present invention, the occurrence of the above problem can be suppressed, and the production can be continued for a long time. The reaggregation of the conductive material is suppressed.
This effect is obtained by the synergistic effect of the following methods (A) to (C).
(A) The solid component containing the active material to be agitated and the non-solid component containing the conductive material slurry are separately charged into the container via the first input port or the second input port, respectively ( B) The stirring target charged in the container is processed in a film-like state between the container and the rotating member that rotates at a high speed slightly inside the inner wall surface of the container by the centrifugal force of the rotating member. (C) Concavities and convexities are formed on the rotating member and / or the inner wall of the container facing the stirring target to be processed in the form of a film by grooves, dimples or protrusions arranged at predetermined intervals.
さらに、導電材の凝集物を含まず高度に分散された電池電極用塗料を用いて製造した電池は、高度な安全性を実現することができる。このため、電気自動車用電源として用いられるリチウムイオン電池等の非水電解液二次電池のように、適当な電圧を得るために複数の電池が直列に接続された状態で使用され、その一つでも電極欠陥が存在するものがあると、発火等の危険が増大するような極めて高度な安全性が要求される電池の電極用塗料を製造するための攪拌装置として好適である。 Furthermore, a battery manufactured using a highly dispersed battery electrode paint that does not contain a conductive material aggregate can achieve a high level of safety. For this reason, a non-aqueous electrolyte secondary battery such as a lithium ion battery used as a power source for electric vehicles is used in a state where a plurality of batteries are connected in series in order to obtain an appropriate voltage, one of which However, if there is an electrode defect, it is suitable as a stirring device for producing a coating material for a battery electrode that requires extremely high safety so as to increase the risk of ignition and the like.
本発明のその他の特徴および利点は、添付図面を参照して以下に行う詳細な説明によって、より明らかとなろう。 Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.
以下、本発明の好ましい実施の形態につき、図面を参照して具体的に説明する。図１〜２は、本発明に係る攪拌装置の一実施形態を示している。 Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings. 1 and 2 show an embodiment of a stirring device according to the present invention.
図１及び２に示すように、本発明の攪拌装置１は、容器２と、この容器２の中心を垂直方向に延びる回転軸８を中心として高速回転する回転部材３１，４１とを有する。 As shown in FIGS. 1 and 2, the stirring device 1 of the present invention includes a container 2 and rotating members 31 and 41 that rotate at high speed around a rotation shaft 8 that extends in the vertical direction about the center of the container 2.
上記容器２は、略円筒状の内壁面を有して上下方向に所定長さを有する円筒状空間を規定している。 回転軸８は、これに接続された高トルクモータ（図示せず）によって高速回転させられ、これに伴って回転部材３１，４１も高速で回転する。 The container 2 defines a cylindrical space having a substantially cylindrical inner wall surface and having a predetermined length in the vertical direction. The rotating shaft 8 is rotated at a high speed by a high torque motor (not shown) connected thereto, and the rotating members 31 and 41 are also rotated at a high speed.
回転部材３１，４１は、容器２の内壁面に対して１〜３ｍｍ程度のわずかな隙間を介して対向する外周面を有する円筒部材の形態をもっている。 The rotating members 31 and 41 have the form of a cylindrical member having an outer peripheral surface facing the inner wall surface of the container 2 with a slight gap of about 1 to 3 mm.
本発明の攪拌装置１に攪拌対象が供給されると、高速回転する回転部材３１，４１による遠心力を受けて、攪拌対象が容器２の内壁面に押し付けられ、回転部材３１，４１の外周面と、容器２の内壁面との間の隙間に行き渡り膜状となる。
さらに、膜状となった攪拌対象は、回転部材３１，４１の回転に伴って容器内を高速で回転する。
When the stirring target is supplied to the stirring device 1 of the present invention, the stirring target is pressed against the inner wall surface of the container 2 due to the centrifugal force of the rotating members 31 and 41 rotating at high speed, and the outer peripheral surfaces of the rotating members 31 and 41. And a gap between the inner wall surface of the container 2 and a film shape.
Furthermore, the stirring target that has become a film rotates in the container at a high speed as the rotating members 31 and 41 rotate.
以上により、膜状となった攪拌対象が、回転する回転部材３１，４１の外周面と、静止する容器２の内壁面との間で強大な剪断力を受け続け、その強大なエネルギーによって高レベルでの分散が攪拌対象に対して施される。 As described above, the stirring target in the form of a film continues to receive a strong shearing force between the outer peripheral surface of the rotating rotating members 31 and 41 and the inner wall surface of the stationary container 2, and the high level of energy is obtained by the strong energy. The dispersion at is applied to the object to be stirred.
また、上記回転部材３１，４１の外周面及び上記容器２の内壁面のそれぞれには、図示しない所定の間隔で配列する溝、ディンプルまたは突起が形成され、これによって凹凸が形成されている。 In addition, grooves, dimples, or protrusions arranged at predetermined intervals (not shown) are formed on the outer peripheral surfaces of the rotating members 31 and 41 and the inner wall surface of the container 2, thereby forming irregularities.
また、本発明の攪拌装置１は、容器２の内部が上下方向に複数の分散槽３，４に区画されており、分散槽３，４には、それぞれ回転部材３１及び４１が収容されている。
回転部材３１及び４１は、共に回転軸８に接続されており、それぞれが一体となって高速で回転する。
Further, in the stirring device 1 of the present invention, the interior of the container 2 is partitioned into a plurality of dispersion tanks 3 and 4 in the vertical direction, and rotating members 31 and 41 are accommodated in the dispersion tanks 3 and 4, respectively. .
The rotating members 31 and 41 are both connected to the rotating shaft 8 and rotate together at high speed.
容器上方側に位置する第１の分散槽３には、攪拌対象を構成する固形成分を分散槽３に投入するための第１投入口とともに、攪拌対象を構成する液体を含む非固形成分（例えば、スラリー）を投入するための第２投入口が配置されている。
一方、容器下方側に位置する第２の分散槽４の下部には、上記固形成分と非固形成分を混合し、さらに分散処理した攪拌対象を容器から外部に排出するための排出口７が配置されている。
In the first dispersion tank 3 positioned on the upper side of the container, a non-solid component containing a liquid constituting the stirring target (for example, a first charging port for feeding the solid component constituting the stirring target into the dispersion tank 3) , Slurry) is disposed.
On the other hand, at the lower part of the second dispersion tank 4 located on the lower side of the container, there is disposed a discharge port 7 for mixing the solid component and the non-solid component and further discharging the agitated object to be dispersed from the container. Has been.
第１の分散槽３では、第１投入口及び第２投入口から投入された各成分が混合されるとともに、分散処理が施される。
第１の分散槽３で混合、分散処理された攪拌対象は、第１の分散槽３の下部に配置される連結口を介して第２の分散槽４に送られて、再度、分散処理が施される。
以上のようにして処理された攪拌対象は、排出口７から容器２の外に排出される。
In the 1st dispersion | distribution tank 3, while each component thrown in from the 1st charging port and the 2nd charging port is mixed, a dispersion process is performed.
The stirring target mixed and dispersed in the first dispersion tank 3 is sent to the second dispersion tank 4 through a connection port arranged at the lower part of the first dispersion tank 3, and the dispersion process is performed again. Applied.
The stirring target processed as described above is discharged out of the container 2 through the discharge port 7.
本願の発明者が、上記の攪拌装置によって処理された攪拌対象用いてリチウム二次電池用電極を作成し、これを評価したところ、特許文献１に示す高速攪拌装置を用いて作成した電極にくらべて、充填密度及び電気抵抗の点で改善がみられた。
また、本発明の攪拌装置１のように複数に区画された分散槽による多段処理を行う場合、単一の分散槽で処理を行う場合にくらべて、上記充填密度及び電気抵抗の改善がより顕著になることが確認された。
以上は、本発明の攪拌装置１が、電池の安全性を高度に維持しつつ、電池の高性能化に適した電極用塗料を効率的に製造することが可能であることを裏付けているといえる。
The inventor of the present application created an electrode for a lithium secondary battery using the stirring target processed by the stirring device described above, and evaluated it. Compared to the electrode created using the high-speed stirring device shown in Patent Document 1, Thus, improvements were observed in terms of packing density and electrical resistance.
Moreover, when performing the multistage process by the dispersion tank divided into several like the stirring apparatus 1 of this invention, compared with the case where it processes by a single dispersion tank, the improvement of the said filling density and an electrical resistance are more remarkable. It was confirmed that
The above confirms that the stirring device 1 of the present invention can efficiently produce a coating material for an electrode suitable for improving the performance of a battery while maintaining the safety of the battery at a high level. I can say that.
一方、図３に示すように、特許文献１に開示された攪拌装置システムを用いて導電材を含む電池電極用塗料を製造する場合、極まれに、予備攪拌工程において生成した導電材の凝集物が分散されずにそのまま電池電極用塗料に混入するという問題が生じるが、本発明の電池電極用塗料製造用の攪拌装置を用いて電池電極用塗料を製造すると、上記問題の発生を抑制することができ、しかもその抑制された状態が長期に亘って維持される。 上記については以下に詳述する。 On the other hand, as shown in FIG. 3, in the case of producing a battery electrode paint containing a conductive material using the stirring device system disclosed in Patent Document 1, in rare cases, the aggregate of the conductive material generated in the preliminary stirring step is generated. Although there is a problem that the battery electrode paint is mixed without being dispersed, if the battery electrode paint is produced using the stirring device for battery electrode paint production according to the present invention, the occurrence of the above problem can be suppressed. In addition, the suppressed state is maintained for a long time. The above will be described in detail below.
まず、特許文献１に開示された攪拌装置システムは、粉末と溶媒とを含む材料を混合し、スラリー状の塗料を製造するための装置であって、材料が投入されてこの材料をバッチ方式で予備攪拌する予備攪拌タンクと、予備攪拌タンクによって予備攪拌された中間材料が供給され、攪拌羽根によって中間材料を攪拌しつつ貯蔵する貯蔵タンクと、貯蔵タンク内の中間材料が連続的に供給され、容器と、この容器の内壁面のわずかに内側で高速回転する回転部材とを備え、回転部材による遠心力によって回転部材と内壁面との間に膜状に存在させた中間材料を連続攪拌する高速攪拌機と、高速攪拌機で得られた攪拌済み材料が供給され、攪拌羽根で攪拌しつつ攪拌済み材料の真空脱泡処理を行う処理タンクと、処理タンクで真空脱泡処理された材料を塗料として塗装工程に移送する移送手段とを備えている。 First, the stirrer system disclosed in Patent Document 1 is an apparatus for producing a slurry-like paint by mixing a material containing powder and a solvent, and the material is charged in a batch system. A pre-stirring tank for pre-stirring, an intermediate material pre-stirred by the pre-stirring tank is supplied, a storage tank for storing the intermediate material with stirring blades while stirring, and an intermediate material in the storage tank are continuously supplied, A high-speed apparatus that continuously includes a container and a rotating member that rotates at a high speed slightly inside the inner wall surface of the container, and continuously stirs the intermediate material that exists between the rotating member and the inner wall surface by centrifugal force generated by the rotating member. A stirrer, a processing tank that supplies the stirred material obtained by the high-speed stirrer, performs vacuum defoaming processing of the stirred material while stirring with a stirring blade, and a material that has been vacuum defoamed in the processing tank The and a transfer means for transferring the coating process as a paint.
上記予備攪拌タンク１００は、上記高速攪拌機３００において材料を本格攪拌するに先立ち、材料をある程度混合させておくために設置される。この実施形態では、垂直状の回転軸１０１周りに高速回転する小径の攪拌羽根１０２と、同じく垂直状の回転軸１０３周りに低速回転する大径の攪拌羽根１０４とを備えており、材料ホッパ１２０，１３０から投入された材料を溜めて、両攪拌羽根１０２，１０４を回転させることにより、この材料を予備攪拌する。小径の攪拌羽根１０２が高速回転することにより、材料を混合させ、大径の攪拌羽根１０４が回転することにより、材料全体をかき混ぜて混合状態を平均化する。 The preliminary stirring tank 100 is installed in order to mix the materials to some extent before the materials are fully stirred in the high speed stirrer 300. In this embodiment, a small-diameter stirring blade 102 that rotates at a high speed around a vertical rotation shaft 101 and a large-diameter stirring blade 104 that rotates at a low speed around a vertical rotation shaft 103 are provided, and a material hopper 120 is provided. , 130 and the stirring blades 102 and 104 are rotated to preliminarily stir the material. When the small-diameter stirring blade 102 rotates at a high speed, the materials are mixed, and when the large-diameter stirring blade 104 rotates, the entire material is stirred to average the mixed state.
しかしながら、上記予備攪拌タンク１００を用いてリチウムイオン電池用活物質及び導電材のスラリーを含む中間材料を作製すると、極まれであるが、導電材の凝集物が中間材料中に生成することがある。この導電材の凝集物は、後工程である高速攪拌機による処理を行っても十分に除去できない場合があり、極めて高度な安全性が要求される電池の電極用塗料を製造するには、更なる改善が必要であった。 However, when an intermediate material containing a slurry of an active material for a lithium ion battery and a conductive material is prepared using the preliminary stirring tank 100, an aggregate of the conductive material may be generated in the intermediate material. This conductive material agglomerate may not be sufficiently removed even if it is processed by a high-speed stirrer, which is a subsequent process, and in order to produce a coating material for battery electrodes that require extremely high safety, further Improvement was needed.
これに対し、本発明の電池電極用塗料製造用の攪拌装置は、予備攪拌タンクによって材料全体をかき混ぜて混合状態を平均化した中間材料を作製する工程を経ることなく、リチウムイオン電池用活物質及び導電材のスラリーのそれぞれを攪拌装置に直接投入し、投入後ただちに、容器と、この容器の内壁面のわずかに内側で高速回転する回転部材との間において、回転部材による遠心力によって膜状となった状態で処理されるようにしている。また、膜状となった状態で処理される攪拌対象が対向する回転部材及び／又は容器内壁面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されている。
以上の方式により、リチウムイオン電池用活物質及び導電材のスラリーを含む電池電極用塗料を作製すると、導電材の凝集物の生成を抑制することができ、さらに長期に亘って導電材の再凝集を抑制することができ、極めて高度な安全性が要求される電池に好適な電極用塗料を製造することができる。
In contrast, the stirrer for producing battery electrode paints of the present invention is a lithium ion battery active material that does not go through a step of preparing an intermediate material by mixing the whole material with a preliminary stirring tank and averaging the mixed state. Then, each of the slurry of the conductive material is directly put into the stirring device, and immediately after the addition, the film is formed between the container and the rotating member rotating at a high speed slightly inside the inner wall surface of the container by the centrifugal force by the rotating member. It will be processed in the state. Further, the rotating member and / or the inner wall surface of the container to be agitated to be processed in a film form are formed with irregularities by grooves, dimples or protrusions arranged at predetermined intervals.
By producing a battery electrode paint containing a lithium ion battery active material and a conductive material slurry by the above method, the formation of conductive material aggregates can be suppressed, and the conductive material can be re-agglomerated over a long period of time. Therefore, it is possible to manufacture a coating material for an electrode suitable for a battery that requires extremely high safety.
なお、導電材としては、カーボンブラック、カーボンナノチューブ又はグラフェンのいずれかを使用することができる。 Note that as the conductive material, any of carbon black, carbon nanotube, or graphene can be used.
本発明に係る攪拌装置は、上述した実施形態に限定されるものではない。本発明に係る攪拌装置の各部の具体的な構成は、種々に設計変更自在である。 The stirring device according to the present invention is not limited to the above-described embodiment. The specific configuration of each part of the stirring device according to the present invention can be varied in design in various ways.
１ 攪拌装置
２ 容器
３ 第１分散槽
４ 第２分散槽
５ 第１投入口
６ 第２投入口
７ 排出口
８ 回転軸
３１，４１ 回転部材
１００ 予備攪拌タンク
１０１，１０３ 回転軸
１０２，１０４ 攪拌羽根
１１０ ジャケット
１２０，１３０ 材料ホッパ
１４０ 排出口
１５０ ポンプ
２００ 貯蔵タンク
２０１ 回転軸
２０２ 攪拌羽根
２１０ ジャケット
２２０ ポンプ
３００ 高速攪拌機
３１０ 容器
３１１ 内壁面
３３０ 回転部材
３５０ 回転軸
３５１ 高トルクモータ
４００ 緩衝タンク
４１０ 導管
４１１ 冷却水循環路
４２０ ポンプ
４２２ フィルタ
４５０ 送給管
４５１，４５２，４５３ 分岐管
４６０ 弁
４７０ 真空ポンプ
４８０ 管
４９０ ポンプ
４９１ 導管
５０１，５０２，５０３ 処理タンク
５１０ 回転軸
５１１ 攪拌羽根
５２０ ジャケット
DESCRIPTION OF SYMBOLS 1 Stirring apparatus 2 Container 3 1st dispersion tank 4 2nd dispersion tank 5 1st inlet 6 Second inlet 7 Discharge 8 Rotating shaft 31,41 Rotating member 100 Pre-stirring tank 101,103 Rotating shaft 102,104 Stirring blade 110 Jacket 120, 130 Material hopper 140 Discharge port 150 Pump 200 Storage tank 201 Rotating shaft 202 Agitating blade 210 Jacket 220 Pump 300 High-speed agitator 310 Container 311 Inner wall surface 330 Rotating member 350 Rotating shaft 351 High torque motor 400 Buffer tank 410 Conduit 411 Cooling Water circulation path 420 Pump 422 Filter 450 Feed pipe 451, 452, 453 Branch pipe 460 Valve 470 Vacuum pump 480 Pipe 490 Pump 491 Pipe 501, 502, 503 Treatment tank 510 Rotating shaft 511 Stirring blade 520 Jacket
Claims (6)
上記回転部材及び／又は上記内壁面の上記膜状に存在させた攪拌対象と対向する面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されており、
上記容器は、上記攪拌対象を構成する固形成分を投入するための第１投入口、上記攪拌対象を構成する液体を含む非固形成分を投入する第２投入口、及び上記固形成分と非固形成分を混合した攪拌対象を排出するための排出口を有する
ことを特徴とする攪拌装置。 A container and a rotating member that rotates at a high speed slightly inside the inner wall surface of the container are provided, and the stirring target that is present in the form of a film between the rotating member and the inner wall surface is stirred by the centrifugal force of the rotating member. A stirring device for
On the surface of the rotating member and / or the inner wall surface facing the object to be agitated, irregularities are formed by grooves, dimples or protrusions arranged at predetermined intervals,
The container is provided with a first charging port for charging a solid component constituting the stirring target, a second charging port for charging a non-solid component containing a liquid constituting the stirring target, and the solid component and the non-solid component. A stirrer characterized by having a discharge port for discharging the stirring target mixed with the.
上記分散槽は、それぞれ上記回転部材収容しており、
上記各分散槽の回転部材及び内壁面の一部であって、膜状に存在させた攪拌対象と対向する面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されている
ことを特徴とする請求項１に記載の攪拌装置。 The container is partitioned into a plurality of dispersion tanks in the vertical direction,
Each of the dispersion tanks contains the rotating member,
Convex and concave portions are formed by grooves, dimples or protrusions arranged at predetermined intervals on a part of the rotating member and the inner wall surface of each dispersion tank and facing a stirring target that is present in a film shape. The stirrer according to claim 1.
最下段に配置される分散槽に上記排出口が形成されている
ことを特徴とする請求項２に記載の攪拌装置。 Among the plurality of dispersing tanks, the first charging port and the second charging port are formed in the dispersing tank disposed in the uppermost stage,
The stirrer according to claim 2, wherein the discharge port is formed in a dispersion tank arranged at the lowermost stage.
上記回転部材及び／又は上記内壁面の上記膜状に存在させた攪拌対象と対向する面には、所定の間隔で配列する溝、ディンプルまたは突起によって凹凸が形成されており、
上記容器は、上記攪拌対象を構成する活物質を含む固形成分を投入するための第１投入口、上記攪拌対象を構成する導電材のスラリーを含む非固形成分を投入する第２投入口、及び上記固形成分と非固形成分を混合した攪拌対象を排出するための排出口を有する
ことを特徴とする電池電極用塗料製造用の攪拌装置。 A stirring object provided with a container and a rotating member that rotates at a high speed slightly inside the inner wall surface of the container, and is made to exist in a film shape between the rotating member and the inner wall surface by centrifugal force of the rotating member. A stirrer for producing battery electrode paint for stirring an intermediate material of battery electrode paint,
On the surface of the rotating member and / or the inner wall surface facing the object to be agitated, irregularities are formed by grooves, dimples or protrusions arranged at predetermined intervals,
The container has a first input port for supplying a solid component containing an active material constituting the stirring target, a second input port for supplying a non-solid component containing a slurry of a conductive material forming the stirring target, and A stirrer for producing battery electrode paints, characterized by having a discharge port for discharging a stirring target in which the solid component and the non-solid component are mixed.
The stirrer for producing a coating material for a battery electrode according to claim 4, wherein the active material is an active material for a non-aqueous electrolyte secondary battery.
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| CN202210674971.9A CN114797534A (en) | 2018-05-21 | 2019-05-17 | Stirring device |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549912A (en) * | 1991-08-21 | 1993-03-02 | Kanzaki Paper Mfg Co Ltd | Production of microcapsule |
| JPH0975698A (en) * | 1995-07-10 | 1997-03-25 | Tokushu Kika Kogyo Kk | Method and apparatus for high seed agitation |
| JP2003047836A (en) * | 2001-08-02 | 2003-02-18 | Tokushu Kika Kogyo Kk | Stirrer |
| JP2004209316A (en) * | 2002-12-27 | 2004-07-29 | Kanebo Ltd | Method and apparatus for throwing powder and liquid into powder mixing tank |
| CN2794619Y (en) * | 2004-12-01 | 2006-07-12 | 煤炭科学研究总院北京煤化工研究分院 | Vertical solid/liquid mixer |
| JP2007125454A (en) * | 2005-11-01 | 2007-05-24 | Primix Copr | High-speed stirring device |
| WO2011145424A1 (en) * | 2010-05-21 | 2011-11-24 | 株式会社クレハ | Vertical countercurrent solid-liquid contact method, method for washing solid particles, method for producing polyarylene sulfide, and device therefor |
| JP2015044156A (en) * | 2013-08-28 | 2015-03-12 | 株式会社豊田自動織機 | Kneading device of electrode paste |
| JP2016018679A (en) * | 2014-07-08 | 2016-02-01 | 三菱瓦斯化学株式会社 | Electrode layer for all-solid battery and all-solid battery |
| CN106784798A (en) * | 2017-02-15 | 2017-05-31 | 中国科学院过程工程研究所 | Positive electrode active materials, preparation method and high-performance anode sizing agent and all-solid lithium-ion battery comprising it |
| CN107611340A (en) * | 2017-08-23 | 2018-01-19 | 柔电（武汉）科技有限公司 | Flexible all-solid-state battery and preparation method thereof |
| CN108031316A (en) * | 2018-01-16 | 2018-05-15 | 天津科创复兴科技咨询有限公司 | A kind of centrifugal feed liquid mixing arrangement of Chemical Manufacture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1717200A1 (en) * | 1990-01-15 | 1992-03-07 | Научно-производственное объединение по геологофизическим методам повышения нефтеотдачи пластов "Союзнефтеотдача" | Mixer |
| JPH05105769A (en) * | 1991-10-17 | 1993-04-27 | Nkk Corp | Batch type production device for high viscosity resin |
| JP3738840B2 (en) * | 2002-05-22 | 2006-01-25 | 三菱レイヨン株式会社 | Powder and liquid mixing apparatus and method |
| JP2006212488A (en) | 2005-02-01 | 2006-08-17 | Ashizawa Finetech Ltd | Medium stirring type grinder |
| ES2445098T3 (en) * | 2008-08-11 | 2014-02-28 | Primix Corporation | Procedure and apparatus for manufacturing a coating material |
| JP6356513B2 (en) | 2014-07-17 | 2018-07-11 | トヨタ自動車株式会社 | Electrode for all-solid battery and method for producing the same |
-
2018
- 2018-08-02 JP JP2018145521A patent/JP7045278B2/en active Active
- 2018-08-06 JP JP2018147820A patent/JP7027277B2/en active Active
-
2019
- 2019-02-22 JP JP2019030468A patent/JP7008656B2/en active Active
- 2019-02-22 JP JP2019030467A patent/JP7008655B2/en active Active
- 2019-05-17 CN CN201980034003.8A patent/CN112154025B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549912A (en) * | 1991-08-21 | 1993-03-02 | Kanzaki Paper Mfg Co Ltd | Production of microcapsule |
| JPH0975698A (en) * | 1995-07-10 | 1997-03-25 | Tokushu Kika Kogyo Kk | Method and apparatus for high seed agitation |
| JP2003047836A (en) * | 2001-08-02 | 2003-02-18 | Tokushu Kika Kogyo Kk | Stirrer |
| JP2004209316A (en) * | 2002-12-27 | 2004-07-29 | Kanebo Ltd | Method and apparatus for throwing powder and liquid into powder mixing tank |
| CN2794619Y (en) * | 2004-12-01 | 2006-07-12 | 煤炭科学研究总院北京煤化工研究分院 | Vertical solid/liquid mixer |
| JP2007125454A (en) * | 2005-11-01 | 2007-05-24 | Primix Copr | High-speed stirring device |
| WO2011145424A1 (en) * | 2010-05-21 | 2011-11-24 | 株式会社クレハ | Vertical countercurrent solid-liquid contact method, method for washing solid particles, method for producing polyarylene sulfide, and device therefor |
| JP2015044156A (en) * | 2013-08-28 | 2015-03-12 | 株式会社豊田自動織機 | Kneading device of electrode paste |
| JP2016018679A (en) * | 2014-07-08 | 2016-02-01 | 三菱瓦斯化学株式会社 | Electrode layer for all-solid battery and all-solid battery |
| CN106784798A (en) * | 2017-02-15 | 2017-05-31 | 中国科学院过程工程研究所 | Positive electrode active materials, preparation method and high-performance anode sizing agent and all-solid lithium-ion battery comprising it |
| CN107611340A (en) * | 2017-08-23 | 2018-01-19 | 柔电（武汉）科技有限公司 | Flexible all-solid-state battery and preparation method thereof |
| CN108031316A (en) * | 2018-01-16 | 2018-05-15 | 天津科创复兴科技咨询有限公司 | A kind of centrifugal feed liquid mixing arrangement of Chemical Manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7027277B2 (en) | 2022-03-01 |
| JP2019202312A (en) | 2019-11-28 |
| JP2019204760A (en) | 2019-11-28 |
| CN112154025B (en) | 2022-10-11 |
| JP2019202311A (en) | 2019-11-28 |
| JP7045278B2 (en) | 2022-03-31 |
| CN112154025A (en) | 2020-12-29 |
| JP7008656B2 (en) | 2022-02-10 |
| JP7008655B2 (en) | 2022-02-10 |
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