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X-ray imaging captures fleeting defects in sodium-ion batteries

Sodium-ion batteries have been touted as a sustainable alternative to lithium-ion batteries because they are powered by a more abundant natural resource. However, sodium-ion batteries have hit a s . ....

San Diego , United States , Shirley Meng , Oleg Gorobstov , Energy Materials , Department Of Materials Science , University Of California , Cornell University Led , Metastable Defects , Layered Oxides , Na Ion Batteries , Advanced Energy , Andrej Singer , David Croll Sesquicentennial Faculty Fellow , Materials Science , Advanced Photon Source , Argonne National Laboratory , Bragg Coherent Diffractive Imaging , Sodium Ion Batteries , X Rays ,

Sodium-Ion Battery Defects Captured with X-Ray Imaging

Sodium-ion batteries have indeed been heralded as a sustainable alternative to lithium-ion batteries since they are driven by a more abundantly available resource. ....

United States , San Diego , Stephanie Matson , Ziyi Wang , Oleg Gorobstov , Daniel Weinstock , Megan Craig , Shirley Meng , Department Of Materials Science , University Of Chicago , Cornell University , University Of California , Energy Storage Technologies Industry , Energy Materials , Argonne National Laboratory , National Science Foundation , Energy Storage Technologies , Ion Battery Defects Captured , Advanced Energy , Assistant Professor , David Croll Sesquicentennial Faculty Fellow , Cornell Engineering , Materials Science , Professor Shirley Meng , Advanced Photon Source , United States Department ,

X-ray imaging captures fleeting defects in sodium-ion batteries

Sodium-ion batteries have been touted as a sustainable alternative to lithium-ion batteries because they are powered by a more abundant natural ....

United States , San Diego , Daniel Weinstock , Stephanie Matson , Ziyi Wang , Oleg Gorobstov , Shirley Meng , University Of Chicago , Energy Materials , National Science Foundation , Argonne National Laboratory , Department Of Materials Science , University Of California , Metastable Defects , Layered Oxides , Na Ion Batteries , Advanced Energy , Andrej Singer , David Croll Sesquicentennial Faculty Fellow , Materials Science , Advanced Photon Source , Bragg Coherent Diffractive Imaging , Argonne National , National Science ,

"Research on the doping strategy and electrochemical performance of nic" by Jingxi Li

The commercialisation of lithium-ion batteries (LIBs) has gradually reformed people's daily life since the 1990s. Compared with other cathode candidates, the Ni-rich ternary cathode materials have been continuously developed due to their high energy density and lower price. However, the fast capacity fading and poor thermal stability still restricted the applications of Ni-rich cathodes. In this regard, a comprehensive understanding of the failure mechanism and corresponding modification strategies need to be raised urgently.
This thesis will firstly introduce the working mechanism of LIBs and different cathode material categories. Secondly, the Li/Ni mixing, which mainly induce the capacity fading of the Ni-rich cathode materials, will be schematically reviewed. The origin of the Li/Ni mixing has been attributed to (i) the similar bonding environments and ionic radius of Ni2+ and Li+, (ii) relieving magnetic frustration, (iii) reducing system entropy and (iv) lower Ni2+ migrat ....

Lithium Ion Batteries , Layered Oxides , I Rich Cathodes , I Ni Mixing ,