Sodium ion batteries - The low-cost future of energy storage?

Рет қаралды 15,321

Күн бұрын

Interested in learning more?
Here are some books which I recommend to learn more about the history of batteries and how they've impacted the world
📚 Volt Rush: The Winners and Losers in the Race to Go Green - Henry Sanderson - amzn.to/4cJ8lB2
📚 The Powerhouse: America, China, and the Great Battery War - Steve LeVine - amzn.to/4bqwRWx
📚 Climate Capitalism: Winning the Global Race to Zero Emissions - Akshat Rathi - amzn.to/3xEjmEK
Sodium-ion batteries have promising cost, safety, sustainability and performance characteristics over traditional lithium-ion batteries but what are the key materials, how do they compare with each other and what does their scale-up pathway look like?
Here in this video we'll cover how sodium-ion batteries work, the pros and cons of different materials and discuss broader materials considerations.
00:00 - Introduction
00:10 - A battery powered future
00:34 - The growing demand for lithium-ion batteries
01:08 - How abundant are the raw materials?
01:59 - Mineral production
03:08 - Sodium-ion batteries
04:42 - Lithium-ion vs sodium-ion batteries
05:33 - Performance comparison
06:47 - Cost
08:42 - Potential applications
09:33 - Inside a lithium-ion battery
10:26 - How does a sodium-ion battery work?
11:19 - Similarities and differences in materials
12:31 - Sodium-ion battery cathode materials
13:41 - Layered transition metal oxides
14:42 - Prussian blue analogues
15:28 - Polyanion
16:05 - Comparison of different sodium-ion battery cathodes
16:52 - Sodium-ion battery anode materials
17:34 - Comparison of different sodium-ion battery anodes
18:10 - What is hard carbon?
18:57 - Summary
20:22 - Closing remarks
Twitter: / icbillywu
Personal website: www.imperial.ac.uk/people/bill...
Personal website: www.billywu.xyz/
About us: www.imperial.ac.uk/design-engi...

Пікірлер: 50

@rejectthetyrannyofprecedent 6 ай бұрын

Great video. Thank you for the information. I'm glad you made the point about SI batteries not displacing LI batteries but rather adding options. Too often we get this weird narrative that new developments must/will/threaten to end existing tech, which is not helpful for discussion.

@BillyWu 6 ай бұрын

Thanks and glad to hear the information was interesting. Yeah, there are so many different applications coming which will require batteries that I'm sure there will be a diversity of chemistries which will be used

@The_End_of_Sanity 11 күн бұрын

BYD in China is already producing sodium-ion batteries for their electric cars and Tesla is planning to use them in their $25,000 vehicle currently in design phase. Sodium-ion batteries should last about 10 times their lithium-ion counterparts. I worked in the battery industry for many years, and I completely agree with this Doctor's assessment. I believe that sodium-ion batteries will dominate the future of electric vehicles.

@BillyWu 10 күн бұрын

Agreed. Sodium-ion batteries are likely to have a very important role in the future of electrification. Exciting times

@peter090654 5 ай бұрын

Fantastic video - everything I wanted to know about the options for sodium ion batteries.

@BillyWu 5 ай бұрын

Thanks. Glad to hear it was useful

@lavafree 6 ай бұрын

Thanks for sharing this knowledge 👏🏻

@BillyWu 6 ай бұрын

Glad to hear it was useful

@lavafree 6 ай бұрын

@@BillyWu Wondering if this combination of (potentially) lower cost and energy density will make it more attractive for stationary applications. Electric grids are totally starved of peak energy shaving due to renewable penetration.

@user-xq8qx6bg2j Ай бұрын

❤❤Thanks Billy, great presentation. 👍

@BillyWu Ай бұрын

Thanks. Glad itnwas useful

@ParkourRunFree 2 ай бұрын

Excellent Video

@BillyWu 2 ай бұрын

Thanks!

@peterepstein4175 5 ай бұрын

Thanks Mr. Wu, very helpful... So, could a conventional Li-ion battery giga-factory convert over to sodium-ion 1) at a reasonable capital cost, 2) without closing the plant down for more than a few weeks 3) with very minimal technical risk. In other words, will sodium-ion replace Li-ion batteries in exciting vehicles or only in brand new vehicle models? Thanks! If only in new models, then Li demand will remain strong....

@BillyWu 5 ай бұрын

Thanks and great question. In theory, yes, the approach for making sodium-ion batteries is almost the same as lithium-ion batteries. Of course there are some nuances to this which still need to be demonstrated (e.g. moisture sensitivity) which means that there are still some technical risks, but in general I think this is feasible. In my mind, I think sodium-ion provides an alternative to lithium-ion. There are a few EVs in China proposing sodium-ion and it'll be interesting to see what real-world challenges come up.

@JusticeAlways 4 ай бұрын

Excellent presentation....very well done. An in-depth investigation of many different materials having potential use for sodium batteries. Did not expect to find this on a KZfaq video...thank you!👍

@BillyWu 4 ай бұрын

Thanks. Appreciate the comment and glad to hear it was useful

@AlsoDave 6 ай бұрын

Thanks for the video. Is there any research on solid-state sodium batteries? Is the ion size/transport a blocker compared to solid-state lithium batteries?

@BillyWu 6 ай бұрын

Thanks. Yeah, there is also work being done on the development of solid-state sodium batteries. Though not in the limelight yet, it has significant potential also

@adon8672 5 ай бұрын

Thanks a lot for this video Professor Wu. I've learnt a lot from you today. I'm wondering why there's no much talk about potassium ion batteries. I thought the much larger ionic radii of potassium compared to sodium and lithium should be compensated by it's reduction potential that's similar to that of lithium. Potassium is also more abundant than lithium. What about possible magnesium ion batteries?

@BillyWu 5 ай бұрын

Thanks and great question. There are many different types of battery technologies out there which all work. The challenge is whether they've reached practical levels of performance in a combination of energy density, power density, cost, lifetime and other parameters in a single cell. For sure some of the fundamental problems with potassium-ion can be solved, however much of this often comes from government funding in fundamental science but often there is a focus on a specific area such that there is sufficient resources to get that area of maturity, rather than spreading too thin.

@oliverwunsch4412 6 ай бұрын

Thanks for the interesting information. I would be interested to know what effect the much larger voltage swing of NIB cells has compared to LFP cells, if it is large, it has no advantage for storage applications, if NIB cells can only be partially discharged due to the large and therefore difficult to use voltage swing, this reduces the capacity even further compared to lithium cells.

@BillyWu 6 ай бұрын

Great question. The exact voltage range will depend on the specific NIB chemistry used, just like in LIBs we have NMC which has a higher voltage range than LFP cells. One potential challenge to note related to your question in that hard carbon has a slightly higher voltage than graphite which means that to extract all the full capacity, the lower voltage cut-off tends to be lower. So, if there is a system which has issues operating at lower voltages then you're right there might be some inaccessible capacity. I'm sure, as we see more of these systems being commericalised, more of the engineering challenges will emerge

@oliverwunsch4412 6 ай бұрын

@@BillyWu Here is an example: A small, cheap EV gets a NIB, the EV is to be charged at the normal fast charging stations, which IMHO have max. 500 V the EV should have a power of 100 kW What does a battery look like? It will have a maximum of 125 cells in series at 3.95V. If this battery is run down to 1.8V it will still have 225V and would have to deliver 444A for 100kW. So the hardware has to be designed for this current, if the battery is even capable of delivering it.

@BillyWu 6 ай бұрын

@@oliverwunsch4412 Older reported performance from Faradion (faradion.co.uk/wp-content/uploads/2018/04/Faradion-Limited-4th-International-Meeting-on-Sodium-Batteries.pdf) shows an operating voltage range of about 4.2-1.0 V for a cell with an energy density of 140 Wh/kg. You likely wouldn't run down to these low voltages so lose some accessible capacity, or have a very low power operating mode

@oliverwunsch4412 6 ай бұрын

@@BillyWu if you run it only down to 2.5V you got a 70 Wh/kg Cell?, what a surprise.;-)

@adon8672 5 ай бұрын

@@oliverwunsch4412Perhaps, the battery management systems (BMS) sodium batteries could include voltage boosting electronics as the battery is discharged towards the lower end of the voltage curve. In that way, the energy density can remain close that of LiFePO4. This should have little ill effect on the battery as sodium ion batteries can be discharged to zero volts (or so I learnt).

@PravdaSeed Ай бұрын

🌀🔋 Thanks

@valramsingh8360 2 ай бұрын

yOUR VIDEOS ARE VERY VERY GOOD.

@BillyWu 2 ай бұрын

Thanks!

@valramsingh8360 2 ай бұрын

@@BillyWu anytime

@Mircosan 5 ай бұрын

hi Bill, do you have same materials on APB (all polymer battery) ? cost >20 kWh

@BillyWu 5 ай бұрын

I've come across APB in the past. They have an interesting approach with some context here (books.rsc.org/books/edited-volume/799/chapter/539101/Creation-of-a-New-Design-Concept-for-All-polymer). In terms of video, I don't have anything specific on this yet

@surplusdoctor 5 ай бұрын

what are the BMS settings and charger settings?

@BillyWu 5 ай бұрын

Sodium-ion batteries broadly work in the same way as lithium-ion however the voltage limits may well be different depending on the chemistry and also the exact state-of-charge estimation technique may also differ from tradition LIB BMSs.

@Telencephelon 4 ай бұрын

What's the hold up? Why aren't there already massive capacities of these batteries?

@Telencephelon 4 ай бұрын

Oh. The answer is right there at 8:40. Great video

@BillyWu 4 ай бұрын

Thanks! Scale-up is happening already in places like China so we'll likely see these deployed soon, but this will take a bit of time to fully scale since the factories and supply chain takes time to develop and significant capital investments

@6969smurfy 3 ай бұрын

Thanks Dr. Wu appreciate your video. , however, troubled at the almost religion application of battery technology that has been appropriated in my absence.. Seems no one is willing to invest in the roots of development,, due to the immediate needs of smarter applications needed now.

@patrickb.4749 5 ай бұрын

I skipped right to the cost segment. What a shame. The price floor set by materials costs appears too damn high. Sodium ion batteries are not going to bring about the extremely cheap storage that we need for multi-day wind energy storage - as wind energy appears to have a lot of day-long periods of little energy production.

@BillyWu 5 ай бұрын

The true cost of a battery is quite nuanced, but the core message is that whilst sodium is cheaper than lithium, the amount of salt in the battery is relatively small. Thus, the main cost is determined by the electrode materials. For the high performance NIBs which use transition metals similar to LIBs the cost advantage won't be as significant, but there are emerging chemistries which can be cheaper than the examples shown, but seasonal storage will always be a challenge for electrochemical batteries.

@cleversolarpower 5 ай бұрын

Great video! I also did a video about sodium-ion, but less detailed.

@BillyWu 5 ай бұрын

Thanks. Appreciate it. I've watched your sodium-ion video also :) Very clear and great to add the engineering considerations which are key for practical considerations. Will be interesting to see the nuances of the technology as we see more deployment

@Charvak-Atheist 4 ай бұрын

Na ion battery is best for Stationary Grid scale storage. As Energy density dosent matter in that case, it just need to be cheap.

@BillyWu 4 ай бұрын

Agreed, energy density is less important in grid applications with cost a key driver, though we also need good lifetime

@6969smurfy 3 ай бұрын

Grid scale is A foolish endeavor, micro macro scale is a smarter way to apply your brain matter too

@peterepstein4175 5 ай бұрын

Isn't comparing today's state of the art NIB to today's state of the art LIB flawed? We need to compare the cost/capabilities of NIBs in 4-5 years (when potentially scaled up) vs. the cost/capabilities of LIBs in 4-5 years, no? If so, how will NIB's ever catch up? There's 1,000x more research going into improving LIBs than into commercializing NIBs, no? Also, will the costs of key elements used in NIBs rise if NIBs become widely used, thus lowering the potential cost advantage? Honestly, I thought that NIBs were going to be 50%-60% cheaper than LIBs, not just 20%-30%. That would justify all the hard work and risk of switching paradigms. I think NIBs will not have anywhere near the success that LFP did at the expense of NCM & NCA...LFP is now like 40% of the total EV batter market? Thanks again.

@BillyWu 5 ай бұрын

A fair point and all battery technologies are constantly evolving. At around the 06:41 point (slide 8) I tried to put down the potential future NIB performance but you're right that LIB performance will also increase so a balanced argument should also include this. I think interest in NIBs will increase this year as there is significant potential offered from decoupling from some of the critical minerials from an energy security perspective. I believe there are already mentions of lithium cartels forming. On potential cost increase of NIB materials of course this could happen, though many of the materials used (depending on configurations) are somewhat more abundant and used widely in other applications (iron, sodium, manganese), so hopefully the risk is less. If NIBs are now at LFP levels of energy density, there are interesting discussions to be be around the balance of these two since LFP can be somewhat lithium intense on a per kWh basis.