Lithium Bis(oxalate)borate (LiBOB) – Comprehensive Technical Guide
Table of Contents
1. Product Overview & Specifications
| Parameter | Value |
|---|---|
| CAS Number | 244761-29-3 |
| Molecular Formula | C4BLiO8 |
| Molecular Weight | 193.79 g/mol |
| Appearance | White crystalline powder |
| Purity | ≥99% (Battery Grade) |
| Melting Point | >300°C |
| Water Solubility | 1015 g/L at 20°C |
| Storage Conditions | Inert atmosphere, 2-8°C |
2. Key Applications & Functional Advantages
Primary Applications:
- Conductive salt in lithium-ion battery electrolytes
- Additive for high-voltage cathode materials (NMC, LMO)
- Stabilizer in lithium metal polymer batteries
Technical Advantages:
- Superior thermal stability (up to 200°C)
- Mn dissolution inhibition (70% reduction vs. LiPF6)
- Wide electrochemical window (0-5V vs. Li/Li+)
- Enhanced SEI formation on graphite anodes
3. Performance Comparison with Common Lithium Salts
| Property | LiBOB | LiPF6 | LiTFSI |
|---|---|---|---|
| Thermal Stability | ★★★★★ | ★★ | ★★★★ |
| Hydrolytic Stability | ★★★★ | ★ | ★★★★★ |
| Conductivity (1M in EC/DMC) | 8.5 mS/cm | 10.4 mS/cm | 7.2 mS/cm |
| High-Temp Cycling (60°C) | 95% capacity retention | 72% | 88% |
4. Industrial Use Cases
Case 1: High-Temperature EV Batteries
Application: 20 Ah NMC811/graphite cells with 1.2M LiBOB in EC/EMC
Results: 500 cycles at 60°C with 92% capacity retention
Case 2: Manganese-Based Cathode Stabilization
Application: LiMn2O4 batteries with 0.5% LiBOB additive
Results: Mn dissolution reduced by 68% after 300 cycles
Case 3: Solid-State Battery Development
Application: LiBOB-PEO composite electrolytes
Results: Ionic conductivity 2.3×10-4 S/cm at 50°C
5. Safety & Handling Guidelines
- Use NIOSH-approved respirator (N95) when handling powder
- Store under argon atmosphere with ≤10 ppm H2O
- Emergency eye wash: Flush with 0.9% saline solution for 15 mins
- Incompatible with strong oxidizing agents
6. Technical Inquiry & Ordering
Request technical datasheets or custom formulations:
Email: info@vivalr.com
Tel: (86) 15866781826
Available Packaging: 1 kg (R&D), 25 kg (industrial), custom batches
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