EP-4741679-A1 - APPARATUS FOR REDUCING VIBRATION OF MIXER USED IN MANUFACTURING OF ELECTRODE SLURRY

Abstract

A vibration prevention apparatus for reducing vibration of a mixer used in manufacturing of an electrode slurry includes a rotation roller member between an inner vessel and an outer vessel extending around the inner vessel of the mixer and a damping cylinder on the outer vessel and configured to absorb the vibration transferred through the rotation roller member to reduce the vibration.

Inventors

• SEO, WONSUB
• KIM, JONGSEON
• KIM, SEONGUK
• LEE, Hoogil
• PYO, YOUNG-HAK

Assignees

• SAMSUNG SDI CO., LTD.

Dates

Publication Date

20260513

Application Date

20250903

Claims (15)

1. A vibration prevention apparatus (200) for reducing vibration of an inner vessel (122) occurring in a mixing operation of a mixer (100) used in manufacturing of an electrode slurry, the apparatus comprising: a rotation roller member (210) between the inner vessel (122) and an outer vessel (124) extending around the inner vessel (122); and a damping cylinder (220) on the outer vessel (124) and configured to absorb the vibration transferred through the rotation roller member (210) to reduce the vibration.
2. The apparatus (200) as claimed in claim 1, wherein the damping cylinder (220) is arranged at equal intervals on an outer surface of the outer vessel (124).
3. The apparatus according to any of claims 1 or 2, wherein the rotation roller member (210) is arranged at equal intervals at a position corresponding to the damping cylinder (220) between the inner vessel (122) and the outer vessel (124).
4. The apparatus (200) according to any of the previous claims, wherein the rotation roller member (210) comprises: a roller (212) configured to rotate in contact with an outer surface of the inner vessel (122); and a fixing member (214) configured to fix the roller (212).
5. The apparatus (200) according to any of the previous claims, wherein the damping cylinder (220) comprises: a cylinder body (222); a piston rod (224) configured to pass through the outer vessel (124) and receive vibration of the inner vessel (122) from the rotation roller member (210); a piston (226) connected to the piston rod (224) and configured to move backwardly in the cylinder body (222) based on the vibration of the inner vessel (122) transferred from the piston rod (224); and a damping medium (228) configured to be compressed and expanded to absorb the vibration of the inner vessel (122) based on the movement of the piston (226) in the cylinder body (222).
6. The apparatus (200) as claimed in claim 5, wherein the damping medium is air or a fluid.
7. A vibration prevention apparatus (300) for reducing vibration of an outer vessel (124) occurring in a mixing operation of a mixer (100) used in manufacturing of an electrode slurry, the apparatus (300) comprising: a link member (310) in contact with the outer vessel (124) and configured to rotate based on vibration of the outer vessel (124); and a hydraulic cylinder (320) configured to absorb the vibration of the outer vessel (124) transferred by a rotation of the link member (310) to reduce the vibration.
8. The apparatus (300) as claimed in claim 7, wherein the apparatus (300) is arranged at equal intervals on a perimeter of the outer vessel (124).
9. The apparatus as claimed in any of claims 7 or 8, wherein the link member (310) comprises: a first end portion (311) configured to contact a jaw (124A) at an upper end of the outer vessel (124); a second end portion (312) rotatably connected to a piston rod (324) of the hydraulic cylinder (320); and a third end portion (313) rotatably connected to a plate (60) disposed on the outer vessel (124).
10. The apparatus (300) as claimed in claim 9, wherein a rotation roller (311A) contacting the jaw (124A) at the upper end of the outer vessel (124) is connected to the first end portion (311).
11. The apparatus as claimed in any of claims 7 to 10, wherein the hydraulic cylinder (320) comprises: a cylinder body (322); a piston rod (324) connected to one end portion (312) of the link member (310) and configured to receive the vibration of the outer vessel (124) from the link member (310); a piston (326) connected to the piston rod (324) and configured to move backwardly in the cylinder body (322) based on the vibration of the outer vessel (124) transferred from the piston rod (324); and a hydraulic fluid (328) configured to be compressed and expanded to absorb the vibration of the outer vessel (124) based on the movement of the piston (326) in the cylinder body (322).
12. An apparatus for reducing vibrations of an inner vessel (122) and an outer vessel (124) occurring in a mixing operation of a mixer (100) used in manufacturing of an electrode slurry, the apparatus comprising: a first vibration prevention apparatus (200) configured according to any of claims 1 to 6; and a second vibration prevention apparatus (300) configured according to any of claims 7 to 11.
13. The apparatus as claimed in claim 12, wherein the second vibration prevention apparatus is arranged on the first vibration prevention apparatus.
14. Mixer (100) for manufacturing an electrode slurry comprising an inner vessel (122) and an outer vessel (124), the outer vessel (124) extending around the inner vessel (122), and further comprising a first vibration prevention apparatus (200) configured according to any of claims 1 to 6; and/or a second vibration prevention apparatus (300) configured according to any of claims 7 to 11; or wherein the mixer (100) further comprises an apparatus for reducing vibrations of the inner vessel (122) and an outer vessel (124) configured according to any of claims 12 or 13.
15. The mixer (100) according to claim 14 wherein the inner vessel (122) is rotatable with respect to the outer vessel (124); and/or wherein the first vibration prevention apparatus (200) is arranged at equal intervals on an outer surface of the outer vessel (124); and/or the second vibration prevention apparatus (300) is arranged at equal intervals on a perimeter of the outer vessel (124).

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application claims priority to and the benefit of Korean Patent Application No. 10-2024-0156602, filed on November 06, 2024, in the Korean Intellectual Property Office. BACKGROUND 1. Field Aspects of embodiments of the present disclosure relate to an apparatus for reducing vibration of a mixer used in manufacturing of an electrode slurry. 2. Description of the Related Art Electrode slurries (e.g., positive electrode slurries) are mixtures that perform an important function in a manufacturing process of a battery (e.g., a lithium ion battery). Mixers are used generally to manufacture an electrode slurry. Mixers have a structure in which a mixing blade, referred to as a rotor, and a vessel containing electrode slurries rotate to mix the electrode slurries. A mixing operation of such mixers is performed according to a method which mixes electrode slurries contained in a vessel while rotating a rotor and the vessel. During mixing, vibration occurs in the vessel due to the rheology of electrode slurries. Such vibration of a vessel may be a large vibration, which transfers to the outside and floor of the facility, causing nearby workers to feel at risk. The vibration increases as a working volume increases, causing a reduction in yield rate of products. SUMMARY According to embodiments of the present disclosure, an apparatus (referred to as vibration prevention apparatus) which may reduce vibration of an inner vessel occurring in (or during) a mixing operation of a mixer for manufacturing an electrode slurry is provided. Moreover, embodiments of the present disclosure provide an apparatus which may reduce vibration of an outer vessel occurring in a mixing operation of a mixer for manufacturing an electrode slurry. Moreover, embodiments of the present disclosure provide an apparatus which may reduce vibrations of an inner vessel and an outer vessel occurring in a mixing operation of a mixer for manufacturing an electrode slurry. Furthermore, embodiments of the present disclosure provide a mixer comprising an apparatus for reducing vibration of an inner vessel, or an apparatus for reducing vibration of an outer vessel, or an apparatus for reducing vibration of an inner vessel and an outer vessel. An apparatus for reducing vibration of an inner vessel occurring in a mixing operation of a mixer used in manufacturing of an electrode slurry includes a rotation roller member between the inner vessel and an outer vessel extending around the inner vessel and a damping cylinder on the outer vessel and configured to absorb the vibration transferred through the rotation roller member to reduce the vibration. According to another embodiment of the present disclosure, an apparatus for reducing vibration of an outer vessel occurring in a mixing operation of a mixer used in manufacturing of an electrode slurry includes a link member configured to rotate based on vibration of the outer vessel in contact with the outer vessel and a hydraulic cylinder configured to absorb the vibration of the outer vessel transferred by a rotation of the link member to reduce the vibration. According to another embodiment of the present disclosure, an apparatus for reducing vibrations of an inner vessel and an outer vessel occurring in a mixing operation of a mixer used in manufacturing of an electrode slurry includes a first vibration prevention apparatus configured to reduce vibration of the inner vessel and a second vibration prevention apparatus configured to reduce vibration of the outer vessel extending around the inner vessel. The first vibration prevention apparatus includes a rotation roller member between the inner vessel and the outer vessel and a damping cylinder on the outer vessel and configured to absorb the vibration transferred through the rotation roller member to reduce the vibration, and the second vibration prevention apparatus includes a link member configured to rotate based on the vibration of the outer vessel in contact with the outer vessel and a hydraulic cylinder configured to absorb the vibration of the outer vessel transferred by a rotation of the link member to reduce the vibration. According to embodiments of the present disclosure, a rotation roller member may be between an inner vessel and an outer vessel, which together configuring a vessel, and a damping cylinder on an outer surface of the outer vessel may receive and reduce, through the rotation roller member, vibration of the inner vessel occurring due to the rheology of a slurry contained in the inner vessel in a mixing operation of a mixer and, thus, may effectively prevent the vibration of the inner vessel. Moreover, a hydraulic cylinder disposed at a periphery of the outer vessel may receive and reduce, through a link member, vibration of the outer vessel occurring due to the rheology of the slurry occurring in the mixing operation of the mixer and, thus, may effectively prevent the vibration of the outer v