Sinyoo, 20 Years of Coating That Solved Electrode Drying with SDC

Sinyoo (Sinyoo Technology Co., Ltd.) is a Guangdong-based company that has researched electrode coating technology for approximately 20 years, narrowing the field with its self-developed SDC (single-layer simultaneous double-side coating) technology.

Sinyoo company profile
Source: official website (xinyuren.com)

1. Company Overview

  • Company name: Sinyoo Technology Co., Ltd. (Sinyoo)
  • Business scope: electrode coaters, roll presses, slitters, drying ovens, electrode/assembly automation lines
  • Research institution: Guangdong Provincial Engineering Technology Research Center for Automated Key Equipment for Power Lithium Batteries

2. History and Personnel

For approximately 20 years, the company has researched and developed equipment spanning the full lithium-battery electrode manufacturing process, including coaters, roll presses, slitters, and drying ovens. It began filing patents related to SDC (single-layer simultaneous double-side coating) technology from 2017, entering full-scale mass production in 2021 with three standard product lines.

The company operates the ‘Guangdong Provincial Engineering Technology Research Center for Automated Key Equipment for Power Lithium Batteries’ and states it has an academician (expert) workstation and a postdoctoral innovation research base. It has been certified as a national-level specialized, refined, distinctive ‘little giant’ enterprise.

3. Core Technology and Key Equipment

The SDC coating technology dries both sides of the electrode simultaneously in a single drying box, resolving the electrode cracking and curling common to conventional reciprocating dual-layer coating, and achieving an electrode dryness of 500 ppm or lower. At a 1,200mm coating width, it achieves a coating speed of up to 70 m/min with areal-density deviation of ±1.0% or less.

  • SDC (single-layer simultaneous double-side coating) system — patented technology, mass production since 2021
  • Fully automatic integrated roll-press/slitting machine
  • Vacuum drying oven for lithium-battery electrodes (RGV type)
  • Automated production line for lithium-battery electrode manufacturing

4. Production Infrastructure and Quality Assurance

The company operates an industrial park in Huizhou and has established the Huake Technology Research Institute. Detailed factory floor area is (non-public).

5. Delivery Track Record and Partnerships

The company states it has secured mainstream lithium-battery customers including CATL, BYD, EVE Energy, SVOLT (蜂巢), and Ruipulanjun (瑞浦兰钧).

6. Financial Status and Roadmap

As a privately held company, financial figures such as revenue are (non-public).

Building on its SDC coating technology, the company is promoting the localization of coating equipment and pursuing market-share growth through technology differentiation in a market marked by intense homogeneous competition.

This profile was compiled from publicly available sources including OFweek Lithium Battery Network and the company’s official website (xinyuren.com); unverified figures and non-public information have not been arbitrarily included.

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