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EV WORLD EXCLUSIVE ARTICLE
Flamingo at Laguna Chaxa, Salar de Atacama, Chile.
Flamingo at Laguna Chaxa, Salar de Atacama, Chile. The lithium carbonate present in this vast, high desert salt pan is one of the largest commercial sources in the world. It is relatively easy to extract and process. As a result, its lower cost has all but driven other mineral sources of lithium out of business.

Revisiting Peak Lithium or Lithium in Abundance?



By Juan Carlos Zuleta Calderón

A rejoinder to Keith Evans and William Tahil on the lithium carbonate debate


Open Access Article Originally Published: June 24, 2008

Editor's Note: We continue to publish the responses of the three principals in the "how-much-lithium-is-there-really" debate in an effort to reach a consensus on the true nature of lithium availability since the automotive industry now appears to be putting many of its 'eggs' in the lithium ion battery basket. We are certain that this isn't the end of the discussion

As Mr. Evans suggests Lithium Reserve Rebuttal, my preference for Don Garrett's figures was apparently not justified. In my defense I can only say that this had to do with my limited understanding of a rather alien issue to my profession.

Nevertheless, after reading William Tahil's new version of "The Trouble with Lithium," including his latest estimates of lithium resources, recoverable reserves and potential chemical grade lithium carbonate production to 2020, a doubt remains in my mind as to the real value of Evans' data. It seems like the 30-year old reserve numbers he refers to have been now seriously challenged. I suspect he will have to devote some time to respond to this new attack, although the battleground may no longer be only geological.

It now appears to pertain also to mining.

Since I declare myself a neophyte on both subjects, for the time being, at least until Tahil's victims of his recent strike react, I shall refrain from making further comments on them. I do have to make one point though regarding Evans' comment on the USGS figure of current demand for lithium. He says that this number "includes the tonnages of lithium contained in ores and ore concentrates sold to the glass and ceramic industries and thus nothing to do with chemical demand". If that is the case, I wonder why in the abstract of his paper he specifically compares this figure with both total reserves of lithium equivalent (or lithium carbonate) and total lithium reserves (or lithium carbonate) at active or proposed operations, including, in each case, lithium from ores, brines and hectorites. To be correct, therefore, Evans might well have compared his 16,000 tonnes Li with 20.1 million tonnes of lithium equivalent (approximately 152 million tonnes of lithium carbonate) to be extracted from brines and hectorites only.

One last comment concerns Evans' agreement with the two caveats in Tahil's approach I advanced in my paper (See: Peak Lithium or Lithium in Abundance?). Here he erroneously refers to "other correspondents" as having made the point that adoption of lithium batteries will be gradual and that major battery breakthroughs could result in less use of lithium and thereby lighter batteries.

In his new version of "The Trouble with Lithium", Tahil refers only once to my article to put Bolivia's intention to produce 1,000 tons of lithium per month beginning 2013 into question and not precisely to respond to my comments. However, in an email sent to Bill Moore, others, and me on June 15, 2008, he makes clear that 1.4kg of lithium carbonate is required per kWh battery capacity and that the claim that either 0.43 or 0.46 kg of lithium carbonate per kWh is sufficient assumes an unachievable (83%) efficiency level and for that reason "is a canard". Thus here he touches, albeit slightly, my second point of criticism and gives me the opportunity to respond. But before I proceed to do so, let me return first to Tahil`s new reserves estimates which I found to be astonishing to say the least.

In sum, he claims that a "more thorough consideration of the Salar de Atacama and Salar de Uyuni shows that global recoverable lithium reserves are only in the order of 4 million tonnes". This estimation of reserves lowers previously known figures substantially. This is most evident in the case of Atacama where USGS reserve base1 and USGS reserves2 numbers are reduced from 3MT down to 1MT of lithium content. Tahil here seems to suggest that what the USGS calls reserve base and/or reserves in Salar de Atacama, should be taken as resources3.

Furthermore, in page 18 of his paper, Tahil defines resources as "the amount of metal claimed to be geologically present", and reserves as "how much of that resources in place one can realistically extract and produce". I wonder what the USGS has to say about these "new" definitions.

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15 comments so far...

03-Dec-2009
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Posted by: fokeply fokeply

21-Aug-2009
67784
  

Questions

Are there sufficient Lithium reserves to replace all existing fossil fuel cars (not trucks) in the next 20 to 30 years and to account for growth in the number rof vehicles on the road and keep going?

How much will it cost to replace the Lithium batteries or pack in a car once it dies? Will it really be cheaper than Gasoline over time? At current gas prices my Toyota Yaris costs $90 per month or $5400 per 5 years (for comparison, assuming a Li-Ion battery pack will last 5 years). I guess maintenance on electric cars may be lower so perhaps actual oprating costs for gasoline versions are slightly higher. I have seen prices for a new Li-Ionbattery between $8000 and $10000 not to mention service costs for installing the new pack. Definetly not less than gasoline and it's a one time financial hit unless you start saving for it when you first buy the car, or just plan to replace the car every 5 years (wasteful in my oppinion).

I am of the belief that Li-Ion, specifically for the auto sector, is a dead-end technology and at best (if at all) a stop gap until something better comes along. I believe that too much effort is being put into this technology especially for the automotive sector. The cost of new Li-Ion cars will be beyond the reach of most people for the forseeable future. This will be made worse as the demand for Lithium rises and so will it's price and consequently the price of these cars.

Fuel cells are a far more elegant solution. This technology has been proven to have a much lower impact on the environment than all other viable energy sources for automobiles. Hydrogen is plentiful and easily processed. Far cleaner than most other technologies, the by product is steam (water). Why not put more effort into this technology and developing it to make it fully viable for use in the auto industry?
Seems to me that perhaps there are other agendas out there that appear more attractive for some reason or other. I should rather say, someone stands to make money out of this one, that's why it's getting the attention!!!!

 


Posted by: Alberto B

05-Feb-2009
65721
  

However, in an email sent to Bill Moore, others, and me on June 15, 2008, he makes clear that 1.4kg of lithium carbonate is required per kWh battery capacity and that the claim that either 0.43 or 0.46 kg of lithium carbonate per kWh is sufficient assumes an unachievable (83%) efficiency level and for that reason "is a canard".


Lithium Iron Phosphate batteries, which seem to be the front runner in the cost per kWh stored arena, only require
an *eigth of the Lithium other Lithium based batteries require, so I imagine .18kg of Lithium Carbonate per kWh is both realistic and likely.

*http://www.thunder-sky.com/technical_en.asp?id=345&typeid=81&orderby=1


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Posted by: fokeply fokeply

12-Feb-2009
65785
  

Bob,

You are correct.  Please note that  I had already incorporated this important piece of information into my presentation at the Lithium Supply & Markets Conference on January 28th in Santiago, Chile.  Unfortunately, this paper is available at the Industrial Minerals web site only for suscribers.  I hope to publish it soon at EV World.Com. 

 


Posted by: Juan Carlos Zuleta

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18-Nov-2008
64944
   According to an article I read from energy conservation, the purpose of the extreme number of lithium is to be used to supply electrical energy for travel but potential lithium shortage will be another reason to favor plug-in hybrids instead of pure electrics..
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26-Jun-2008
62392
   The Trouble with Tahil

I think the points Juan Carlos Zuleta Calderón outlined were very relevant and important.

There are a few more general points that need to be wrapped up:

Resource Figures:

There is so much detailed analysis at the moment of out of date figures for such an important argument, that a conclusion of Li resource amounts will be unclear for years to come.

The best figures you will get are from the leading producers, which are few - SQM, Chemtall, SCL Chile, Talison and Keliber.

The USGS are very good with figures like these, but they do not have the time or resources to obtain accurate enough resource data for such a discussion.

So to make a definite argument on whether Li is or whether Li isn’t the next-gen power source, is not possible.

Li is in its embryonic stage:

China, Middle East, Australia, South America salars – in the scheme of things all of these are untapped, yes, even the salars of South America.

The industry, and particularly Meridian Resources, have only taken a real interest in Li in the past three years. Li is something Industrial Minerals magazine has been covering for the last 40 years, and it is fair to say it is only now people and standing up and taking note.

This means investment into exploration and accurate resource figures has not been large, let alone extensive – this is only happening now. So global resources figures of today are not good enough, but resource figures in three years time will provide a clearer picture.

Other sources:

Where I would agree with Tahil is with his points on extracting Li from alternative sources – Seawater I don’t think will happen, but clays (Turkey, Bigadic boron deposit) may.

More significantly, do not forget hard rock Li sources – Talison is back on track and rumours that SQM are interested continue, look out for Keliber in Finland. Success at these two sources will just encourage more companies to become involved in hard rock, European sources nearer to the end battery market.

Technological advances:

The strides Li has made in the last two years is equals if not eclipses the last ten years in the industry. The point? The next five years will be even more interesting.

As interest grows, more companies become involved, competition increases, and processing techniques improve (rapidly). This improvement in refining technology will be far more important in the coming years than any touted Li recycling methods. Simon Moores,
Posted by: Simon Moores



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