Cell Design and Materials: Li-Ion

Lithium Manganese Oxide LMO Basic Information LMO SWOT ANALYSIS

Strengths

Weaknesses

Opportunities

Threats

LMO has better thermal stability compared to NMC and NCA.

Mn dissolution & capacity fading, especially at elevated T and high voltage.

Mn dissolution & capacity fading, especially at elevated T and high voltage; major life-limiting mechanism.

Competition from LFP and LMFP similar safety and cost, but often better cycle life and strong industrial ecosystem.

Low cost, earth-abundant Mn vs Co-based cathodes; good for cost-sensitive markets. High power density for EVs, power tools and fast charge capability. Manganese is more abundant and less toxic than cobalt. LMO is one of the more promising materials for solid-state batteries. High efficiency at low cost. LMO does not release oxygen as aggressively as LMR at high states of charge.

Limited energy density vs NMC/NCA. Poorer high-voltage stability (4.3 V) due to phase changes, surface damage, and side reactions. LMO may suffer from capacity fade and and poor efficiency at high power. Electrolyte side reactions and HF attack accelerate degradation. Cannot compete with LMR in EV range; LMR offers 33% higher energy density than LFP and vastly outstrips LMO

Limited energy density vs NMC/NCA, and even vs some optimized LFP in pack-level systems. LMO may suffer from capacity fade and and poor efficiency at high power. Electrolyte side reactions and HF attack accelerate degradation. Blending LMO with LMR (or NCM) leverages LMO's high power to compensate for LMR's poor rate capability.

High-Mn layered/spinel cathodes LMNO, high-Mn NMC) may capture the Mn-based, high power narrative with higher energy density. Persistent Mn-dissolution concerns can limit acceptance in long-life EV/ESS without strong mitigation.

Advantage: LMOʼs advantages lie in its cost-effectiveness, safety, and environmental benefits. its spinel 3D structure gives fast Li+ diffusion → high power / fast charge, while Mn makes it cheaper and safer than Co‐rich cathodes. That combo is why itʼs strong in tools, e‐bikes, and 23‐wheelers. LMO does not current have a big market share: LMO suffers from short cycle life due to high self-discharge rate and capacity fade over many charge/discharge cycles, caused by manganese dissolution and structural degradation. However, some companies have been able to manage this issue with a variety of techniques.

Mature, somewhat “commodizedˮ chemistry may lead less investor attention vs next-gen cathodes.

Source: 1. Battery Report 2024 Pg226; 2. LMR battery technology, article by S&P Global Mobility; 3. Zihao Zheng et al, Langmuir 2025, 41, 48, 3300933021

Extracted from the PDF; charts and images may read imperfectly.