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CATL NMC811 vs LFP Batteries: Thermal Runaway Comparison

CATL NMC811 vs LFP Batteries: Thermal Runaway Comparison

April 23, 2026

  This paper presents a comparative study on the thermal runaway propagation of CATL batteries using NMC811 and LFP as cathode materials. The main conclusions are as follows: Thermal Runaway Propagation Characteristics The peak temperature during thermal runaway of NMC811 batteries (899°C) is significantly higher than that of LFP batteries (524°C). In addition, the thermal runaway propagation speed of NMC811 batteries is five times that of LFP batteries. This indicates that NMC811 batteries require additional safety measures, such as inter-cell spacing and thermal barriers, to meet safety standards. Gas Emission The gas volume, gas flow rate, and gas temperature released by NMC811 batteries during thermal runaway are all higher than

Figure 5: High-Current Discharge Curves of CR2032 Coin Cells

How to resolve the issue of CR2032 batteries being unable to support high-current discharge?

April 14, 2026

How to resolve the issue of CR2032 batteries being unable to support high-current discharge? During the material R&D phase, it was observed that some CR2032 coin cells failed to discharge normally (Figure 1), which hindered the accurate and rapid acquisition of material performance data. This paper provides a fundamental analysis of why CR2032 lithium-ion coin cells fail to support high-current discharge. Through experimental troubleshooting, a definitive assembly strategy for CR2032 coin cells was established. 1. Introduction to the Assembly Process of CR2032 Lithium-ion Coin Cells 1.1 Instruments Rolling machine (Calender); Punching machine; Coating machine; Glove box; Sealing machine; Battery testing system; Mixer. 1.2 Reagents CR2032 coin cell cases; Copper foil

Figure 4. Regulation of material microstructures via ultrafast sintering. (A) SXRD pattern and Rietveld refinement results of LFP-1000. (B) Fe/Li antisite content of LFP, LFP-900, LFP-1000, and LFP-1100 derived from the Rietveld refinement of SXRD data. (C) PDF patterns in the $r$ range of $2.8\text{–}4.0\text{ \AA}$ for LFP, LFP-900, LFP-1000, and LFP-1100 obtained from synchrotron X-ray total scattering data. (D) FTIR spectra of LFP, LFP-900, LFP-1000, and LFP-1100. (E) In-situ SXRD contour plot recorded during the ultrafast sintering process of LFP. (F) Evolution of Fe/Li antisite content during the ultrafast sintering process, as derived from the corresponding refinement results of in-situ SXRD patterns. HAADF-STEM images of (G) LFP and (H) LFP-1000. (I) Temperature-dependent defect concentrations of four distinct defects ($V_{Li}$, $V_{Fe}$, $V_{O}$, and Fe/Li antisites) calculated via DFT. (J) Formation process of Fe/Li antisites simulated by AIMD. (K) Lithium-ion diffusion coefficients ($D_{Li^+}$) of LFP and LFP-1000 during charging at 8C, derived from the corresponding GITT plots in Figure S33.

Olivine type cathodes with simultaneous regulation of surface-bulk microstructure for long-term fast-charging 2026

April 10, 2026

Breaking the Fast-Charging Ceiling! Mingjian Zhang (CUHK), Zuwei Yin (XMU) & Zhiman Liu (Li Auto) in Matter: Ultrafast Sintering Post-treatment Unlocks High-Performance olivine type cathodes First Authors: Yuansheng Lin, Enze Li Corresponding Authors: Mingjian Zhang, Zuwei Yin, Zhiman Liu Equipment Used: This study utilized the Neware MIHW-200-160CH All-in-one Integrated Coin Cell Testing System. Research Background In the wave of next-generation fast-charging technology, a vast amount of existing commercial olivine-type cathode materials (such as lithium iron phosphate, LFP) are facing severe performance bottlenecks. Directly discarding or blindly recycling them would cause immense resource waste and environmental pressure. An intuitive approach to enhancing the fast-charging capability of LFP is to increase the

Battery Charge and Discharge Curves I: Time-Current/Voltage Curves 1. Constant Current (CC)

Introduction to Battery Charge and Discharge Curves 2026

April 8, 2026

Since lithium-ion batteries (such as cylindrical or pouch cells) typically operate within closed systems to ensure cycling stability and safety, their internal physicochemical states remain difficult to observe directly. Consequently, external electrochemical testing is essential for characterizing and estimating internal cell information. During the charging and discharging process, cell voltage fluctuates according to the Depth of Discharge (DOD). By recording parameters such as voltage, capacity, State of Charge (SOC), and time, we can plot charge-discharge curves that reflect the battery’s electrochemical characteristics. These curves contain critical data regarding polarization phenomena, phase transitions, and kinetic limitations, serving as the foundation for analyzing battery performance. The following sections introduce several common types

Lithium Dendrites

Lithium Dendrite Growth Mechanism and Suppression Methods 2026

March 31, 2026

Lithium Dendrite Growth Mechanism and Suppression Methods Lithium metal is considered the ideal anode material for next-generation high-energy-density batteries, such as Lithium-Sulfur and Lithium-Air batteries. This is due to its extremely high specific capacity, low reduction potential, and low density. However, the growth of lithium dendrites severely limits its practical application. Test your battery’s performance with Neware’s high-precision battery testing solution. Lithium dendrites can pierce the separator, leading to short circuits. They also destroy the Solid Electrolyte Interphase (SEI) film. This results in the accumulation of “dead lithium,” capacity fade, and serious safety issues. Today, we will discuss the growth mechanism, influencing factors, characterization techniques, and suppression strategies of lithium

Sulfide-based All-Solid-State Batteries

Sulfide-based All-Solid-State Batteries: Core Challenges and Breakthroughs in Materials and Interfaces 1

March 30, 2026

The massive expansion of the EV market has pushed lithium-ion batteries beyond the 300 Wh/kg threshold, bringing costs down to nearly $100 per kWh. Despite this progress, conventional batteries with liquid electrolytes are hitting a plateau in terms of energy density and safety. All-solid-state batteries are now seen as the core technology for the next generation of EVs, offering higher energy density, better safety, and longer life. In particular, sulfide-based all-solid-state batteries are gaining immense traction because their solid electrolytes can match the high ionic conductivity of liquid systems, making them a top research priority globally. However, the practical application of sulfide-based ASSBs still faces multiple challenges. Technical bottlenecks spanning