Combustible and Toxic gas monitoring for Electrode Filling Processes
Monitoring Solutions for Testing Processes
Oxygen Deficiency Monitoring
A leading manufacturer of gas detectors with its own sensing technology for more than 80 years.
Involved in Lithium-Ion battery manufacturing process for over 20 years since the development stage.
Riken Keiki's involved in the research and manufacturing of lithium-ion batteries since the early stage of development.
Over 10,000 units are in operation at the lithium-ion battery production sites around the world.
We will continue to support the safety of lithium-ion battery production by continuous improvement and responding to the costumers voices.
Riken Product Advantages
Focused solutions for all aspects of Lithium-ion Battery Production
Riken Keiki has developed gas detection solutions for all production processes of lithium-ion battery manufacturing, which are typically high temperature environments. By utilizing direct insertion and heat resistant gas detection technology, accurate gas monitoring can be achieved in high temperature conditions often required by coating and drying processes.
Gas monitoring for Coating and Drying
Measuring vaporized combustible gas at high temperatureHigh heat resistant duct-mounted monitors withstand operating temperatures up to 200℃, ideal for coating and drying process.
Accurately measure gas concentrations at the duct center point.Direct insertion design (250 mm) enables diffusion monitoring at the center of the duct.
Resistance against siliconLow sensitivity degradation, excellent safety
Silicon material covers the catalyst surface of the sensor and then it reduces the sensor sensitivity.
In volatile organic silicone atmospheres, catalytic poisoning (SiO2 film formation) due to chemical reactions degrades the sensitivity of catalytic combustion method sensor.
Silicone poisoned sensors cannot provide correct readings because the response to NMP is degraded. Therefore, RIKEN has taken measures to reduce the sensitivity degradation in the sensor.
※ Riken in house data
＊In general, Ethanol often used as the calibration gas which is relatively easy to obtain and handle. However, since ethanol has a small molecular weight, “silicon poisoned deteriorated sensor” will react. RIKEN KEIKI succeeded to suppress the deterioration in order to display the accurate NMP gas concentration with ethanol calibrated sensor.
Combustible Gas Monitoring Comparison
Company
Company A
Company B
Company C
Insertion depth
250mm
250mm
Not Available
250mm
Operating temperature (Sensor)
0℃ ～ +200℃
-20℃ ～ +80℃
-40℃ ～ +150℃
0℃ ～ +160℃
ATEX / IECEx/ UL
Acquired
Acquired
Acquired
Not Available
RIKEN KEIKI （SD-2600）
Insertion depth
RIKEN KEIKI （SD-2600）
250mm
Company A
250mm
Company B
Not Available
Company C
250mm
Operating temperature (Sensor)
RIKEN KEIKI （SD-2600）
-20℃ ～ +200℃
Company A
-20℃ ～ +80℃
Company B
Not Available
Company C
250mm
ATEX / IECEx/ UL
RIKEN KEIKI （SD-2600）
Acquired
Company A
Acquired
Company B
Acquired
Company C
Not Available
Importance of Gas Detection
Why detect for gases in lithium-ion battery production?
During the production of lithium-ion batteries, processes use or generate gases, which can be combustible or toxic. Exceeding safe concentrations of these gases can put your people and equipment at risk. Protect your people and property by installing gas detection designed for lithium-ion manufacturing applications.
Lithium-ion battery production process
Process
Electrode manufacturingDrying process
In the production of electrodes for lithium-ion batteries, NMP is used as a solvent. NMP will only vaporize at high temperatures during the drying processes. As concentrations of NMP build up, the risk of explosion increases. An ideal location to detect NMP is within the exhaust duct. By utilizing direct insertion design into the exhaust duct, detection of NMP will be at the center of the duct and able to withstand high temperatures and high concentrations.
A variety of solvents are mixed in electrolytes, such as DMC, EMC, and DEC. These have the potential to explode if vaporized, so gas detectors are required.
Every Lithium-ion battery is required to pass a test without emitting gas in a harsh environment. Combustible gas and toxic gas may be generated from the battery in the evaluation test process. Gas concentration monitoring is essential to prevent ignition and poisoning accidents during the testing process. When the gas detector detects the target gas, it is necessary to take outside air from the intake / exhaust damper to reduce the gas concentration in the test equipment.
Dichloromethane (DCM) and other solvents are used for cleaning purposes in the production process of separators for lithium-ion batteries. For measuring low-concentration solvent gas and combustible gas, RIKEN KEIKI's gas detectors are ideal solutions for separator processes.
Electrode manufacturingPortable Gas Detection for Personnel
Riken Keiki’s portable gas detectors provide team members with personal warnings of gas alarms. Offering the smallest and lightest 4-gas monitor, workers can comfortably wear gas detection within the recommended breathing zone.
Along with gas detectors, RIKEN KEIKI's original "GADMS Lite" system is available for accessing remote monitoring, configuration, and alarm history from a PC, Tablet, or Smartphone.
it is effective for small and medium scale systems
Real-time detector reading can be checked remotely
Event history can be checked
Cost effective easy solution
Live demo GADMS Lite available to view from your PC, Tablet and Smartphone.
Since the birth of the lithium-ion battery, RIKEN KEIKI's gas detectors have kept pace with technological innovation and have been used by many customers.
Frequent Sensor Sensitivity Deterioration.
After consulting with RIKEN Keiki with investigation, it was found that the cause was the silicon contained in the packing of the machine was melted into the gas. We replaced with the SD-2500 which has resistance against silicon which can damage the sensor. We were able to detect the NMP gas which has risk of causing huge damage to the factory as well as maintaining our safety.
NMP is collected and reused in the drying process.
If the concentration of NMP rises, there is a danger of explosion. SD-2500 is a direct duct insertion type, and the gas sensor can be placed to the center of the duct where the highest gas concentration. In addition, the explosion-proof design is capable to measure in high temperatures where NMP vaporized environment. Provides us a confidence to keep our safety.
SD-2600 is an ideal product for coating and drying process, close to 200℃
Riken Keiki equipment is design for use in high temperature environments up to 200℃, while measuring NMP with high accuracy and reliability. Ensuring safety was our goal and product can be installed in the high temperature.
We are able to find suitable detector for low concentaration gas.
We needed gas detector possible to measure PPM level for combustible and toxic gas at electrolyte filling process. Riken was able to adjust the range according to our request.
Continuous measurement enabled productivity improvement and cost reduction.
Continuous measurement of solvent is essential for the separator manufacturing. Accuracy and maintenance free (no sensor replacement!) FI-900 was our choice after the consultation with Riken.
Extensive international network for reliable and complete support
Utilizing our established overseas network, you could purchase our product and services all over the world.
Affiliated company
Distributor
About us
Since our company was founded in 1939 under the umbrella conglomerate of RIKEN, our management philosophy has been to create safe working environments. Our science and technology research laboratories have developed industrial gas detection warning devices, specializing in monitoring harmful gases in the work environment, as well as for explosion prevention from combustible gases. Without compromise, we continue to challenge ourselves to be technological leaders, developing and manufacturing a wide range of industrial gas detection systems and monitors. From large-scale gas detecting alarm systems to small-sized personal gas monitors for safety protection; used in many industries including semiconductor and LCD plants, petroleum complexes, steelworks, various tankers, oil storage stations, underground gas facilities, and volcanoes.
Experts in gas detection for over 80 years
The “RIKEN Gas Detector” utilizing the principle of light wave interference, was exhibited at the 1937 Paris World Exposition. Its subsequent use greatly contributed to the prevention of accidents in coal mines where many fatalities were prevalent at the time. On the 15th March 2019 we celebrated our 80th anniversary. Supported by our history and tradition we shall further improve long established technology, and continue to innovative. Developing reliable quality products in response to the diverse needs of industry.
GD-A2400
Production process
Drying
Installation point
Duct direct insertion
Purpose
Explosion prevention
Detector model
GD-A2400
Main measuring gases
NMP
Measuring range
0-100% LEL
Advantages
・Insertion part : 250mm
・- 20℃ ~ +160℃ (Sensor)
・Without concentration display function
・ATEX/IECEx/UL
Benefits
Detect the concentration near the center in the duct
Low running cost because not pump required
SD-2500
Production process
Drying
Installation point
Duct direct insertion
Purpose
Explosion prevention
Detector model
SD-2500
Main measuring gases
NMP
Measuring range
0-100% LEL
Advantages
・Insertion part : 250mm
・- 20℃ ~ +160℃ (Sensor)
・With concentration display function
・ATEX/IECEx/UL
Benefits
Detect the concentration near the center in the duct
Low running cost because not pump required
SD-2600
Production process
Drying
Installation point
Duct direct insertion
Purpose
Explosion prevention
Detector model
SD-2600
Main measuring gases
Combustible Gas
Measuring range
0-100% LEL
Advantages
・Insertion part : 250mm
・- 20℃ ~ +200℃ (Sensor)
・With concentration display function
・ATEX/IECEx/UL
Benefits
Detect the concentration near the center in the duct
Low running cost because not pump required
SD-2700
Production process
Drying
Installation point
Duct direct insertion
Purpose
Explosion prevention
Detector model
SD-2700
Main measuring gases
Combustible Gas
Measuring range
0-100% LEL
Advantages
・Insertion part : 250mm
・0 ～ 250℃ (Sensor)
・With concentration display function
・No explosion certificate
Benefits
Detect the concentration near the center in the duct
Low running cost because not pump required
SD-D58 （HW - Sensor）
Production process
Electrolyte filing
Installation point
In / On the machine
Purpose
Explosion prevention
Detector model
SD-D58･DC(TYPE GP)(ATEX)
Main measuring gases
DMC
Measuring range
0-100% LEL
Advantages
・Buit-in pump suction type
・With concentration display function
・ATEX
Benefits
Quickly gas detection with high performance built-in pump
Equipped with a low flow detection sensor to notify of failures
Unitization of replacement parts. Easy replacement of sensor and pump units.
SD-1GH
Production process
Electrolyte filing / Separator production
Installation point
In / On the machine or room
Purpose
Low concentaration Combustible & Toxic gas measurement
Detector model
SD-1GH(ATEX･IECEx)
Main measuring gases
DMC / DCM / DEC etc
Measuring range
PPM range (please cotact us)
Advantages
・Diffusion Type
・With concentration display function
・ATEX/IECEx
Benefits
Wide detection range available (please contact us)
Early gas detection at PPM level
With a self-diagnostic function that displays error codes and notifies the user in the event of a malfunction.
SD-1OX
Production process
Electrolyte filing
Installation point
Room inside
Purpose
Oxygen deficiency prevention
Detector model
SD-1OX(ATEX･IECEx)
Main measuring gases
O2
Measuring range
0-25vol% (Oxygen deficiency prevention Type)
Advantages
・With concentration display function
・ATEX/IECEx
Benefits
Increase safety in the factory by preventing oxygen deficiency.
With a self-diagnostic function that displays error codes and notifies the user in the event of a malfunction.
GD-70D
Production process
Testing
Installation point
In / On the machine
Purpose
Detection of gas generated during product testing
Detector model
GD-70D Series
Main measuring gases
Gases generated in the testing process
Measuring range
Depends on sensor
Advantages
・More than 200 types of sensor lineup
・With concentration display function
・Universal design that is not affected by detection principles
Benefits
A wide variety of sensors are available to meet your detection gas requirements.
Large LCD allows you to check all information at a glance.
Space-saving and power-saving
FI-900
Production process
Separator production
Installation point
Process line
Purpose
Solvent gas damper control
Detector model
FI-900
Main measuring gases
DCM etc…
Measuring range
Respond to your needs (please contact us)
Advantages
・More than 80 types of detection gases lineup
・The sensor can be used not only for air and nitrogen, but also for a variety of base gases such as argon and CO2.
・ATEX/IECEx
Benefits
Sensor sensitivity without degradation
Simplified and immediate replaceability by adapting modular unit structure
Designed to suit your requirements—gas concentration measurements, gas concentration control, purity measurements, explosion prevention
SD-1GH
Production process
Electrolyte filing / Separator production
Installation point
In / On the machine or room
Purpose
Low concentaration Combustible & Toxic gas measurement
Detector model
SD-1GH(ATEX･IECEx)
Main measuring gases
DCM etc
Measuring range
PPM range (please cotact us)
Advantages
・Diffusion Type
・With concentration display function
・ATEX/IECEx
Benefits
Wide detection range available (please contact us)
Early gas detection at PPM level
With a self-diagnostic function that displays error codes and notifies the user in the event of a malfunction.
NMP monitoring for
Combustible and Toxic gas monitoring for Electrode Filling Processes
Monitoring Solutions for
Oxygen Deficiency
Measuring vaporized combustible gas at high temperature High heat resistant duct-mounted monitors
Accurately measure gas concentrations at the duct center point. Direct insertion design (250 mm) enables diffusion
ATEX/IECEx/UL certificateions/approvals Explosion-proof design
Resistance against silicon Low sensitivity degradation, excellent safety
250mm
