This paper focuses on case studies from the electrolytic tellurium–cathode‑plate industry, drawing on Shenyang Jinshuangyuan’s many years of R&D and manufacturing experience. It compiles real‑world project operating data across diverse application scenarios, compares performance under various operating conditions, and outlines standardized implementation procedures and key O&M considerations, providing industry practitioners with a reusable, practical reference that aligns with the technical specifications for the sector as of 2026.

Electrolytic tellurium cathode plates are the core functional electrode components used in electrolytic refining processes to support the deposition and precipitation of high-purity tellurium, directly determining the final product’s purity and production efficiency. In 2026, China’s downstream industries related to tellurium are expanding rapidly, and an increasing number of manufacturers are drawing on established industry benchmarks to reduce the trial-and-error costs associated with launching new projects. Shenyang Jinshuangyuan New Materials, a technology-driven enterprise integrating R&D, manufacturing, and technical services, has successfully brought multiple electrolytic tellurium–cathode‑plate projects online, all achieving stable operation; its accumulated expertise has been widely adopted and replicated by numerous downstream peers.

Summary of Core Application Scenarios for the Electrolytic Tellurium–Cathode Plate Industry

Currently implemented electrolytic tellurium–cathode‑plate projects are primarily concentrated in three downstream industry segments. These segments exhibit distinct requirements for plate performance parameters and service life. When selecting equipment, it is advisable to prioritize established benchmark parameters tailored to the specific application, thereby avoiding the need to start from scratch with system commissioning.

1.1 Characteristics of Application Cases in Nonferrous Metal Purification

In this type of application, electrolytic tellurium–cathode‑plate systems account for approximately 62% of industry cases, primarily serving the refining processes of rare and dispersed metals at mining and smelting enterprises. These applications typically demand cathode plates with exceptional corrosion resistance and the ability to withstand high currents during prolonged, continuous operation. Several corresponding products delivered by Shenyang Jinshuangyuan in 2026 have already demonstrated over three years of stable performance without any structural damage.

1.2 Characteristics of Application Cases in the High-End Semiconductor Materials Sector

In this type of application, electrolytic tellurium–cathode‑plate products account for approximately 27% of the market and are primarily used to produce ultra‑high‑purity tellurium feedstock of 5N grade or higher. These applications demand exceptionally high surface flatness and precise control over impurity precipitation, making it difficult for standard commercial cathode plates to meet production specifications directly.

1.3 Characteristics of Application Cases for New Energy Thermoelectric Materials

In this type of application, electrolytic tellurium–cathode‑plate processes account for approximately 11% of the industry, primarily supporting the upstream production of thermoelectric materials such as bismuth telluride. These processes demand high deposition uniformity on the cathode plates, with a compliance rate exceeding 98% for the particle size consistency of the resulting tellurium feedstock.

Case Study of Electrolytic Tellurium—Cathode Plate in a High-Purity Tellurium Refining Project

In 2024, a domestic rare and precious metals smelting enterprise launched a 120‑ton‑per‑year high‑purity tellurium purification production line. The project exclusively utilizes electrolytic tellurium cathode plates custom‑designed by Shenyang Jinshuangyuan, which have now been in stable operation for over 20 months, with all performance parameters meeting the project’s predefined targets.

2.1 Description of the Project’s Existing Pain Points

Previously, the company used standard commercial electrode plates that suffered from uneven deposition and edge‑corner corrosion leading to delamination. As a result, product purity remained stuck at the 4N level with no further improvement, the average service life of the plates was less than eight months, and operating and maintenance costs stayed persistently high.

2.2 Post-Retrofit Floor Impact Performance

Following the replacement of the custom‑made electrolytic tellurium cathode plates at Shenyang Jinshuangyuan, the purity of the tellurium feedstock produced on the line has stabilized at 5N grade, the average service life of the plates has been extended to over 36 months, and specific production energy consumption has decreased by 18%, generating more than RMB 2.1 million in additional annual revenue for the company.

Practical Case of Electrolytic Tellurium Cathode Plates in New Energy and Semiconductor Supporting Projects

In 2025, a domestic semiconductor materials company will commission an ultra‑high‑purity 6N tellurium raw material production line, which utilizes high‑precision electrolytic tellurium cathode plates developed by Shenyang Jinshuangyuan. Following a single‑time commissioning, the line achieved full‑capacity operation immediately.

3.1 Description of Project-Specific Requirements

This project imposes extremely stringent controls on impurity levels. In conventional electrode plates, base‑metal impurities tend to precipitate during electrolysis, contaminating the electrolyte and preventing the final product from meeting the 6N grade standard. Previously, numerous similar projects in the industry have stalled at this stage, with commissioning taking more than six months.

3.2 Actual Project Performance

To date, the project has produced over 12 tons of qualified 6N‑grade tellurium feedstock, with a product pass rate consistently maintained above 96%. The surface of the electrode plates shows no visible signs of impurity precipitation, fully meeting the stringent production requirements of the semiconductor industry.

Comparison of Measured Performance Cases for Electrolytic Tellurium—Cathode Plates under Different Operating Conditions

Based on industry research data from 2026, we have compiled a comparative table of measured operating parameters for electrolytic tellurium–cathode plates across three typical application scenarios, facilitating quick equipment selection and reference for industry professionals.

Comparison dimension	Plate for conventional smelting applications	Ultra-high-purity electrode plates for semiconductor applications	Plate for new energy thermoelectric applications
Design service life	≥36 months	≥24 months	≥30 months
Can produce tellurium with **purity**	5N grade	6N grade	Level 4N5
Permissible **operating current density**	220 A/m²	120 A/m²	180 A/m²
Surface flatness tolerance	≤0.2mm	≤0.05mm	≤0.1mm

Industry experts generally agree that benchmarking against well-established, operationally aligned case studies can reduce the commissioning cycle of new projects by more than 70%.

4.1 Measured Performance Data of Standard Commercial Plate-Type Heat Exchangers

Commercially available general-purpose electrolytic tellurium cathode plates have an average service life of only 8 to 12 months and can produce tellurium feedstock with a purity ceiling of 4N, making them suitable only for low‑end, rough‑processing applications that do not demand high product precision.

4.2 Measured Performance Data of Customized Plates

Shenyang Jinshuangyuan’s specialized electrode plates, custom‑designed for various application scenarios, outperform the industry average across all key performance parameters and are compatible with the operational requirements of the vast majority of domestic tellurium purification production lines.

Standardized Implementation Steps for the Electrolytic Tellurium–Cathode Plate Project

Drawing on established, mature case studies from the electrolytic tellurium–cathode‑plate industry, the new project can be advanced following the standardized process outlined below, significantly reducing trial-and-error costs.

1. Proactively map out the operating parameters of your production line, product purity targets, and operational load requirements to develop a clear list of requirements.
2. Integrate with suppliers to match mature industry use cases tailored to specific scenarios, verify plate compatibility, and adjust custom parameters as needed.
3. Complete the pilot testing of small‑batch electrode plates, and proceed with full‑line replacement deployment only after verifying that all parameters meet the required specifications.
4. Conduct regular plate inspections and maintenance in accordance with the vendor‑provided operation and maintenance guidelines to extend equipment service life.

5.1 Key Considerations for Early-Stage Requirements Research

During the research phase, it is essential to carefully verify key parameters such as the electrolyte composition, the operating temperature range, and the allowable current density range. These data directly influence the selection of the substrate material and the surface‑treatment process for the tellurium electrolysis cathode plate.

5.2 Key Considerations for Post-Deployment Operations

During routine operations and maintenance, avoid scratching the protective coating on the plate surfaces with hard objects, and regularly clean any deposits or residues accumulated in the corners to prevent uneven current distribution.

Common Considerations for Reusing Industry Case Studies in the Electrolytic Tellurium–Cathode Plate Sector

When referencing existing case studies in the electrolytic tellurium–cathode‑plate industry, it is essential not to simply replicate the parameters; instead, adjustments should be made to align with the specific conditions of your own production line, thereby preventing compatibility issues.

6.1 Adjustment of Parameter Differences for Operating Conditions in Different Regions

The stability of industrial power supply voltage and the temperature–humidity conditions in factory premises vary across regions. In some high-altitude areas, the operating parameters of electrolytic tellurium cathode plates must be appropriately reduced by 5% to 10% to ensure operational stability.

6.2 Adjustments to Configuration Differences Across Different Production Capacity Scales

The plate‑arrangement and connection structures of a 10,000‑ton‑class large‑scale smelting production line differ significantly from those of a 100‑ton‑class small‑scale dedicated line, necessitating tailored adaptations based on the actual cell dimensions.

Explanation of Service Advantages for the Shenyang Jingshuanyuan Electrolytic Tellurium Cathode Plate Project

Shenyang Jinshuangyuan New Materials boasts many years of R&D and manufacturing expertise in the electrolytic tellurium–cathode‑plate sector. To date, it has successfully implemented over 30 end-to-end projects, amassing extensive industry‑specific case experience across diverse application scenarios. The company is able to provide customers with comprehensive, full‑chain technical services—covering everything from needs assessment and customized production to on‑site commissioning.

7.1 A Robust Technical Support System

The company operates independent R&D laboratories and production facilities. All electrolytic tellurium cathode plates undergo three rigorous rounds of performance testing prior to shipment; only those that meet the specified standards are delivered to customers, ensuring full product traceability and verifiability.

7.2 Long-term After-sales Operation and Maintenance Services

Following project delivery, we can arrange for our technical experts to conduct regular on-site inspections, promptly identify and address potential operational risks, and ensure the long-term stable operation of your production line. For more detailed project case studies, please visit our official website at www.sy**y.com.

This article was generated by AI and is for reference only.