Lingguang Group, a leading pioneer in the research and development of Sodium Carboxymethyl Cellulose (CMC), is proud to announce its latest suite of high-performance battery-grade CMC solutions. Specifically engineered for the lithium-ion battery sector, these innovations are designed to meet the rigorous demands of the global transition toward carbon neutrality.
I. Core Support for Anode Systems: Strong Bonding & Structural Stability
Lingguang’s CMC serves as the vital link in the aqueous binder system for lithium battery anodes. The active groups within its molecular structure—such as sodium carboxyl and hydroxyl—form robust hydrogen bonds with active materials, conductive agents, and copper foil current collectors.
-
Superior Adhesion: Effectively prevents "powder shedding" and electrode delamination during production and cycling.
-
Structural Integrity: By coating the anode materials, it suppresses the exfoliation of graphite layers and mitigates the volume expansion/cracking of silicon-carbon anodes.
-
Rheological Control: Its excellent dispersion capabilities prevent slurry agglomeration, ensuring a smooth, uniform coating that is perfectly compatible with high-speed coating processes.
II. Essential Additives for Electrolytes: Enhanced Performance & Distribution
As a gelling agent and performance modifier, Lingguang’s CMC ensures the formation of a stable, uniform paste between active substances and electrolytes.
-
Voltage Stability: Prevents particle sedimentation, ensuring sufficient electrolyte coverage and preventing abnormal voltage drops under vibration or harsh conditions.
-
Low Resistance: Its exceptional liquid retention improves the electrolyte absorption rate and reduces internal resistance, minimizing performance decay after high-temperature storage.
-
High-Rate Discharge: When paired with sodium polyacrylate, it enhances high-current discharge performance, meeting the diverse needs of high-rate applications.
III. Featured "Lingguang" Battery-Grade Models
Lingguang Group offers a specialized product lineup tailored for specific engineering challenges:
-
Flexible CMC-Na (BVHF9): Utilizing advanced chemical modification, BVHF9 transforms the molecular structure from "brittle" to "tough." This reduces the need for plasticizers and significantly extends cycle life, making it a key material for next-gen energy storage.
-
High-Purity & Low-Impedance (BVH9): Characterized by a smooth surface and high purity with minimal gel particles. This model optimizes electrode flatness and improves manufacturing yield rates.
-
Ultra-High Viscosity (BVH9 Extra-High): Designed as a rheology modifier for anode slurries, it achieves rapid dissolution and prevents the uneven distribution of SBR latex. Its rapid "structure recovery" after shearing reduces the risk of coating "tailing."
IV. Technical Specifications
| Parameter / Model | BH8 | BVH8 | BH9 | BVH9 | BVH9 (Extra) | BVH 10 |
| Viscosity (1% Sol, mPa.s) | 20-500 | 500-5000 | 20-500 | 500-5000 | ≥5000 | 500-4000 |
| Appearance | - | - | White or slightly yellowish powder/granules | - | - | - |
| CMC Content (%) | ≥99.5 | ≥99.5 | ≥99.5 | ≥99.5 | ≥99.5 | ≥99.5 |
| Degree of Sub. (D.S) | 0.8-0.9 | 0.8-0.9 | 0.9-1.0 | 0.9-1.0 | 0.9-1.0 | ≥1.0 |
| pH Value (10g/L) | 6.0-8.5 | 6.0-8.5 | 6.0-8.5 | 6.0-8.5 | 6.0-8.5 | 6.0-8.5 |
| Loss on Drying (%) | ≤10.0 | ≤10.0 | ≤10.0 | ≤10.0 | ≤10.0 | ≤10.0 |
| Iron (Fe) (mg/kg) | ≤15 | ≤15 | ≤15 | ≤15 | ≤15 | ≤15 |
| Copper (Cu) (mg/kg) | ≤15 | ≤15 | ≤15 | ≤15 | ≤15 | ≤15 |
Note: Lingguang Group provides customized production with adjustable viscosity and substitution degrees based on specific client requirements.
About Lingguang Group
Lingguang Group is dedicated to the research, development, and manufacturing of Sodium Carboxymethyl Cellulose. Leveraging years of technical expertise and a rigorous quality control system, we provide customized solutions for the lithium battery industry. Our mission is to empower the evolution of battery materials and drive the global momentum of the "Dual Carbon" strategy.
