Abhay Gupta

Battery scientist, Staff Materials Engineer at @tesla. @Forbes 30 Under 30 Energy. Views are my own.

[Cybertruck @cybertruck]

First Cybertruck made with 4680 cells containing lithium from our Gulf Coast Lithium Refinery

[Tesla @Tesla]

Produced our 100 millionth 4680 cell across all our factories!

[Tesla @Tesla]

Congrats 4680 Cell Manufacturing team on building their 50 millionth battery cell at Giga Texas!

[Tesla @Tesla]

Just built our 20 millionth 4680 cell at Giga Texas!

[Abhay Gupta @Ag_butnotsilver]

@arvindpawan1 At the undergrad level, I would have loved the ability/independence to take a bunch (> 5 or 6) of technical electives from other engineering & science departments, rather than be tied to strictly departmental offerings.

[Karthish Manthiram @KManthiram]

Humbled to think of all my dad has done to develop Li-ion batteries despite life challenges- his dad passed away when he was just 2 mo. old and he initially decided to not go to college to instead support his family. Read his story here in @Bloomberg! https://t.co/5MPrPh0WlW

[Abhay Gupta @Ag_butnotsilver]

@AhmedElabd44 That is so kind of you; please do not hesitate to reach out if you would ever like to discuss more at length!

[Abhay Gupta @Ag_butnotsilver]

New paper out in ACS Energy Letters! In this work, we develop an understanding of the joint effects of high donor number compounds and organopolysulfide conversion on the discharge behavior of lithium-sulfur batteries. Lots of fun insights into solution-coordination behavior!

[electrochemicat @electrochemicat]

Evoking High-Donor-Number-Assisted and Organosulfur-Mediated Conversion in Lithium-Sulfur Batteries (relevance: 100%) https://t.co/3YL6YD3nzy #battchat #batterytwitter

[Abhay Gupta @Ag_butnotsilver]

@AhmedElabd44 Thanks for the great questions! Really awesome to hear your thoughts :). Yeah we did, DMA and MeIm are so reactive that it’s honestly hard to get more than a few cycles

[Abhay Gupta @Ag_butnotsilver]

@AhmedElabd44 SEI alone wouldn’t necessarily be the dominant contributor, as dimethyl polysulfides have been shown to reduce on Li-metal into better SEI-forming species than lithium polysulfides. However, definitely a great point, the SEI certainly plays a large role.

[Abhay Gupta @Ag_butnotsilver]

@AhmedElabd44 Great question! In Li-S batteries, increased CE (>100%) is associated with heightened polysulfide shuttling (back & forth reduction/oxidation of polysulfides during delithiation). High donicity amplifies this solution-mediated behavior, both for better (capacity) and worse (CE).

[ACSEnergyLett @ACSEnergyLett]

Evoking High-Donor-Number-Assisted and Organosulfur-Mediated Conversion in Lithium–Sulfur #Batteries, a Letter by Abhay Gupta, Amruth Bhargav, and Arumugam Manthiram @UTAustin https://t.co/ui4tnEijdd

[Abhay Gupta @Ag_butnotsilver]

@BrianTHeligman @ArtirKel Both the sulfate-free process as well as the NaCl ion exchange with clays (?) definitely seemed to come out of left field. Not entirely sure what they’re signaling at. Would definitely like/need to hear more details from Tesla!

[Abhay Gupta @Ag_butnotsilver]

@alexjadecove Learned a lot from your presentation! Curious to know what the major bottlenecks are with DLE technologies, including electrochemical ones.

[Abhay Gupta @Ag_butnotsilver]

@BrianTHeligman In terms of an optimization problem, negative emissions techh would probably have positive affects on a lot of systems i.e ocean acidification and corals. Direct air capture at scale maybe?

[Abhay Gupta @Ag_butnotsilver]

Had a lot of fun working on this review! There's been some great work done in recent years on developing anode-free cells, and it will be exciting to see how this cell format further develops moving forward. #battchat

[electrochemicat @electrochemicat]

Anode-Free Full Cells: A Pathway to High-Energy Density Lithium-Metal Batteries (relevance: 100%) https://t.co/f6k5zxP1nn #battchat #batterytwitter