Lithium-ion secondary battery KUMYANG (Korean manufacturer)
Lithium-ion battery (cylindrical) South Korean manufacturer
Achieving long lifespan through in-house development! Lithium-ion battery (cylindrical)
Lithium-ion secondary batteries are rechargeable secondary batteries that can be miniaturized and lightweight compared to other types of batteries, and they have the characteristic of being able to store a large amount of electricity. [Company Overview] - Company Name: KUMYANG - Established: 1955 - Location: Busan Metropolitan City, South Korea - Number of Employees: 500 - Sales: 152 billion won - Main Products: - Cylindrical lithium-ion batteries: Mainly producing 21700 (5A, 5.5A) / 4695 (34A) (Module/pack production possible) - Single crystal cathode materials, anhydrous lithium hydroxide, foaming agents [Features] ■ Price Competitiveness (more competitive than Japanese manufacturers) Securing cost competitiveness through lithium mine development/battery/materials/production of secondary batteries (cylindrical cells) ■ Quality Competitiveness Products for Japan are produced in Busan, South Korea (Smart factory process line configuration) ■ High Capacity and Output Improved energy density by using single crystal cathode materials (cathode material: NCMA) *For more details, please download the PDF (catalog) or feel free to contact us.
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basic information
■Basic Information - Size: 4695 and 21700 - Cell Capacity: 34Ah (4695), 5Ah & 5.5A (21700) - Energy: 124.8Wh (4695), 18.5Wh (21700) - Lifespan: 2,000 cycles (21700) - Positive Electrode Material: Ni 90% - Single Crystal NCMA - Low-Temperature Characteristics: -20℃ ■4695 Cylindrical Battery Cell Specifications - Discharge Capacity (Nominal): 34.0Ah - Energy (Nominal): 124.8Wh - Energy Density (Wh/l): 790.3, (Wh/kg): 290.2 - Charge (Max. Current): 3C (102A) - Discharge (Max. Current): 3C (102A), (Continuous): 2C (68A) - Nominal Voltage (Nominal): 3.7V - Initial Impedance (SOC 33%): DCIR 3.0 mΩ - Cycle Life (Cycles): 1000
Price information
Price competitiveness (More price competitive than Japanese manufacturers.)
Delivery Time
Applications/Examples of results
- Electric Vehicle (EV) - Construction Machinery (EV) - Agricultural Machinery (EV) - E-Mobility - Power Tool - Energy Storage (ESS) - AGV, etc.
Detailed information
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Case studies
catalog（1）
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Company information
Our company has been operating as a specialized trading company handling a wide range of industrial products, primarily focusing on industrial rubber products, synthetic resin products, and corrosion-resistant equipment. We offer a diverse array of products, including industrial rubber, plant products, various resin products, construction machinery parts, and piping materials. Additionally, to provide products that embody our customers' needs, we propose solutions through "problem-solving consulting." We are also actively importing industrial goods from Korea and expanding into new items related to secondary batteries and robotics.
![[Analysis Case] Evaluation of Degradation of Lithium-Ion Secondary Battery Anodes](https://image.mono.ipros.com/public/product/image/237/2000010838/IPROS4163034357457498618.jpg?w=280&h=280)
