Samsung Electronics publishes all-solid-state battery with '800km per charge, 1000 recharge cycles' in Nature Energy

Samsung Electronics Develops Next-Generation 'All-Solid-State Battery' Innovative Technology

(from left) Yuichi Aihara, Principal Engineer (Corresponding Author), Yonggeon Lee, Principal Researcher (First Author), Dongmin Lim, Master (Corresponding Author)

[Asia Economy Reporter Ki-min Lee] Samsung Electronics’ Advanced Institute of Technology has published a core technology that can double the lifespan and safety of the next-generation battery known as the “All-Solid-State Battery” while reducing its size by half in the world-renowned academic journal Nature Energy.

On the 10th, Samsung Electronics’ Advanced Institute of Technology announced research results on all-solid-state batteries capable of driving 800 km on a single charge and recharging the battery more than 1,000 times. This research was jointly conducted by the Advanced Institute of Technology and Samsung Electronics Japan Research Center.

All-solid-state batteries replace the electrolyte between the battery’s cathode and anode from liquid to solid, enabling the implementation of large-capacity batteries and enhancing safety compared to currently used Lithium-Ion Batteries.

Generally, lithium metal (Li metal) is used as the anode material in all-solid-state batteries. However, lithium metal presents a technical challenge in solving the “Dendrite” problem, which reduces the lifespan and safety of all-solid-state batteries.

Dendrites refer to tree-branch-shaped crystals that form when lithium ions moving from the cathode to the anode during charging accumulate on the anode surface. These crystals damage the battery separator, lowering lifespan and safety.

Infographic on Samsung Electronics Advanced Institute of Technology's 'All-Solid-State Battery' Technology

[Photo by Samsung Electronics]

To solve the dendrite problem, Samsung Electronics applied the world’s first “precipitated lithium anode technology” by introducing a 5 μm (micrometer, one-millionth of a meter) thick silver-carbon nanoparticle composite layer (Ag-C Nanocomposite Layer) on the anode of the all-solid-state battery.

This technology not only increases the safety and lifespan of all-solid-state batteries but also makes the battery anode thinner than before, thereby increasing energy density and enabling the battery size to be reduced to about half compared to lithium-ion batteries.

Dong-min Lim, Master at Samsung Electronics’ Advanced Institute of Technology, said, “This research is a core foundational technology that will revolutionize the driving range of electric vehicles,” adding, “We will overcome the limitations of next-generation batteries through research on all-solid-state battery materials and mass production technologies.”

Meanwhile, Samsung Electronics’ Advanced Institute of Technology is regarded as the center of Samsung’s future advanced technology R&D. The institute has been recognized for its research achievements, publishing results on the “commercialization potential of self-luminous QLED” and the “possibility of non-invasive blood glucose measurement” in Nature and Science Advances in November last year and January this year, respectively.

This content was produced with the assistance of AI translation services.