English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Lithium-ion batteries (LIB) are emerging as the energy storage device of choice for vast variety of applications including electric vehicles (EV) and hybrid electric vehicles (HEV). High energy density batteries are in demand to power EVs. The best way to achieve this is the use of high voltage materials. Among all the cathode materials available for LIBs, LiNi0.5Mn1.5O4 (LNMO) with a voltage of 4.75 vs Li/Li + and a theoretical capacity of 147 mAh/g shows superior properties for high voltage applications. In this study, we used phosphoric acid (PA) modified LNMO electrodes and lithium bis-(oxalato)borate (LiBOB) electrolyte additive separately and together to investigate the cell performance. The cycling data suggested that the PA modification of LNMO significantly improves the performance of LNMO/graphite full cells, which is further enhanced by LiBOB additive in the electrolyte. The metal ion concentrations obtained through ICP-MS studies performed on harvested anodes from cycled cells reveal relatively low levels of manganese and nickel deposited on the anode for PA modified LNMO and cells with LiBOB. The improvement in electrochemical performance is directly related to the reduction in transition metal dissolution. The surface analytical techniques FTIR and XPS have also been performed to further investigate the performance improvement by PA modification and LiBOB.

INCREASED CYCLING PERFORMANCE OF LI-ION BATTERIES BY PHOSPHORIC ACID MODIFIED LiNi0.5Mn1.5O4 CATHODES IN THE PRESENCE OF LITHIUM BIS(OXALATO)BORATE