(558bg) High Strength 3D Aluminum Foam Current Collector for the Better Performances of the Lithium-Ion Battery and the Supercapacitor
AIChE Annual Meeting
2019
2019 AIChE Annual Meeting
Poster Sessions
General Poster Session II
Wednesday, November 13, 2019 - 3:30pm to 5:00pm
Nowadays, modification or
nanocrystallization of the active material is a common way to improve the energy density and power density of lithium-ion batteries and
supercapacitors. However, because of the large specific surface area or low bulk density of these new active materials (such as graphene,
nano-LiFePO4.), the traditional two-dimensional current collector aluminum foil cannot increase the load of the active materials and fully transmit the charge in the materials. Therefore, it can’t fully realize the performance of these new materials. To solve this problem, it is a promising way to choose 3D aluminum foam instead of aluminum foil as the current collector for its electrochemically stable and 3D conductive metal skeleton network which may
increase the load of materials and enhance the electrode's
3D conductivity
. However,
due to the weak intrinsic mechanical strength of aluminum, how to prepare the high strength aluminum foam has become a barrier for its energy storage application. This work mainly discusses the design and high strength principles of 3D aluminum foam and using it as the current collector to improve the performances of lithium-ion batteries and
supercapacitors.
It is found that the 3D conductive network can reduce the polarization, increase the load of the electrode, the volumetric energy density and power density of the lithium-ion battery and
supercapacitors.
nanocrystallization of the active material is a common way to improve the energy density and power density of lithium-ion batteries and
supercapacitors. However, because of the large specific surface area or low bulk density of these new active materials (such as graphene,
nano-LiFePO4.), the traditional two-dimensional current collector aluminum foil cannot increase the load of the active materials and fully transmit the charge in the materials. Therefore, it can’t fully realize the performance of these new materials. To solve this problem, it is a promising way to choose 3D aluminum foam instead of aluminum foil as the current collector for its electrochemically stable and 3D conductive metal skeleton network which may
increase the load of materials and enhance the electrode's
3D conductivity
. However,
due to the weak intrinsic mechanical strength of aluminum, how to prepare the high strength aluminum foam has become a barrier for its energy storage application. This work mainly discusses the design and high strength principles of 3D aluminum foam and using it as the current collector to improve the performances of lithium-ion batteries and
supercapacitors.
It is found that the 3D conductive network can reduce the polarization, increase the load of the electrode, the volumetric energy density and power density of the lithium-ion battery and
supercapacitors.