LG Energy Solution and SNU Stabilize Low-Cost LMR Batteries
A new charging protocol allows lithium manganese-rich cells to retain 92.2% energy after 883 cycles.
LG Energy Solution and Seoul National University have developed a new charging and discharging protocol that stabilizes lithium manganese-rich (LMR) batteries. This breakthrough addresses the long-standing durability and gas generation issues that have previously prevented these cheaper chemistries from reaching the market.
In rigorous testing, the research team utilized large-format cells with a capacity of 40Ah to simulate real-world applications. According to data confirmed by LG Energy Solution and industry reports, these optimized LMR cells retained 92.2% of their initial energy after 883 charge-discharge cycles. This result demonstrates a significant leap in the stability of the chemistry, specifically mitigating the rapid capacity loss and gas buildup that typically plague LMR cells during operation.
The LMR Challenge
Lithium manganese-rich batteries have long been viewed as a promising, cost-effective alternative to the high-nickel batteries currently dominating the electric vehicle (EV) market. By utilizing cheaper ingredients, LMR batteries offer a path toward reducing the overall bill of materials for energy storage. However, the chemistry has historically suffered from declining voltage and structural instability, which led to premature battery failure and safety concerns related to gas generation.
Impact on EV Adoption
Solving these stability issues could fundamentally shift the economics of electric mobility. By lowering the cost of battery packs without sacrificing long-term durability, manufacturers can reduce the entry price of EVs. This is particularly critical for the mass adoption of entry-level models and larger vehicles, such as trucks and SUVs, where the competing demands of high range and low cost have remained a primary constraint for consumers.
The Path to Commercialization
While the 40Ah cell results provide a strong proof of concept for scalability, the industry will now look toward how this protocol integrates into mass-production manufacturing. The focus remains on whether these stability gains can be maintained across different temperature extremes and varying usage patterns. If the results hold, the partnership between LG Energy Solution and Seoul National University may have removed the final technical barrier to the commercial viability of LMR technology.