Revolutionary Breakthrough in Next-Generation LMR Batteries by LG Energy Solution and SNU

LG Energy Solution's Collaborative Innovation in LMR Battery Technology

In a significant advancement for battery technology, LG Energy Solution, in partnership with Seoul National University, has made a groundbreaking discovery that bolsters the stability of lithium manganese-rich (LMR) batteries, which are pivotal for the future of electric vehicles (EVs). On September 7, 2026, LG Energy Solution unveiled the outlines of this innovative technology stemming from joint research conducted with Professor Jongwoo Lim and his team from the Department of Chemistry at SNU.

Addressing Technical Challenges

Lithium manganese-rich batteries are regarded as the next-generation cathode materials that promise to lower costs while delivering enhanced energy densities. However, a major hurdle in the commercialization of these batteries has been gas evolution during charging and discharging processes, which can lead to performance degradation. The research team identified key factors contributing to this issue, providing a pathway to optimize the operational conditions for large-format LMR cells.

In their research, published in the reputable journal Nature Communications, the team detailed how controlling the reversibility of oxygen reactions can mitigate gas generation, the primary challenge in the practical application of LMR battery technology. They discovered that oxygen recovery, an essential component for maintaining the internal structure during cycles of charging and discharging, is influenced by both the upper cutoff voltages during charging and the discharge cutoff voltages.

Optimizing Operational Conditions

Through systematic analyses, the researchers found that reducing the upper charging voltage from 4.6 volts to 4.3 volts increased the recovery of oxidized oxygen from 86% to an impressive 97%. Similarly, adjusting the discharge cutoff voltage from the conventional level of 3.0 volts down to 2.0 volts significantly aided in restoring oxygen to its original state, thus preventing damage during the battery's operational cycles.

By employing these insights, LG Energy Solution undertook a redesign of the operational voltage range and formation methods for their large-format 40 Ah LMR batteries. These adaptations included introducing a lower-temperature formation process that effectively curbs gas generation.

Remarkable Performance and Stability

The outcome of these innovations was impressive: the optimized 40 Ah large-format LMR cells demonstrated an astounding retention of 92.2% of their initial energy even after undergoing 883 cycles of charge and discharge. Such extraordinary cycle-life stability showcases the potential for these batteries to transcend small-format applications and enter the lucrative market for electric vehicle batteries.

Professor Jongwoo Lim commented on the research: "By focusing on the degradation causes from the perspective of oxygen reversibility, we have proven that battery stability can be enhanced through well-designed electrochemical protocols. Our findings indicate that ensuring long-term stability in LMR batteries requires a comprehensive approach, taking into account both charging and discharging conditions."

An LG Energy Solution spokesperson echoed these sentiments, stating: "This research directly addresses one of the pivotal challenges hindering LMR battery technology. Our findings confirm that it is indeed possible to secure stable battery life in large-format cells by efficiently mitigating gas generation, thereby establishing a solid foundation for growth in the emerging LMR battery market."

LG Energy Solution's Vision

LG Energy Solution, recognized globally as a leader in manufacturing lithium-ion batteries for a myriad of applications—including electric vehicles, mobility, and energy storage—boasts over three decades of expertise in revolutionary battery technology. With a strong commitment to sustainability and innovation, the company aims to achieve carbon neutrality across its value chain by 2050. Furthermore, it actively fosters a culture of shared growth and inclusiveness within its corporate environment.

Should you wish to delve deeper into LG Energy Solution's innovative strategies and aspirations, you can explore their offerings at LG Energy Solution News.