Search found 3537 matches

by jonescg
Oct 17 2019 11:54pm
Forum: Battery Technology
Topic: Battery cell type help
Replies: 1
Views: 32

Re: Battery cell type help

LG MJ1 cells are better value than Sammy 35Es right now. Slightly better cell in terms of DCIR and capacity.
by jonescg
Oct 16 2019 11:10pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Ahh good old carbon capture and storage. The holy grail of innovation to help keep the oil and gas industry doing what they're already doing, for longer. We had a massive natural gas hub in the north-west of Australia only get approval to proceed on the condition they set up a CCS plant and have it ...
by jonescg
Oct 16 2019 8:23am
Forum: E-Vehicles General Discussion
Topic: Can EVs survive without subsidies ?
Replies: 11
Views: 229

Re: Can EVs survive without subsidies ?

Well Australia would clearly be a great place to assess how EVs go without subsidies, since we have none.
plugin sales Oz.JPG
plugin sales Oz.JPG (29.25 KiB) Viewed 36 times
The answer is slowly.
by jonescg
Oct 16 2019 2:10am
Forum: Alternative Energy
Topic: Grid tie inverters and HV battery
Replies: 2
Views: 63

Re: Grid tie inverters and HV battery

These units check maximum Amps available from the solar array. With batteries connected they tend to blow if you are not limiting Amps during such check. Also a Precharge is helpful to keep them alive. Cheers - I've since heard that it can, and has been done, but it will export power at the maximum...
by jonescg
Oct 16 2019 1:28am
Forum: Alternative Energy
Topic: Grid tie inverters and HV battery
Replies: 2
Views: 63

Grid tie inverters and HV battery

Hi All, A question came up on another forum about testing battery packs. Lots of people will have a 100-400 V battery they would like to load test, but a decent load for a high voltage battery can be hard to come across. So the suggestion was to feed power into the grid using a solar grid-tie invert...
by jonescg
Oct 15 2019 8:34pm
Forum: Items for Sale - New
Topic: Assembled Hi-Power LiPo battery packs - any interest?
Replies: 565
Views: 105104

Re: Assembled Hi-Power LiPo battery packs - any interest?

Another 24s4p battery pack using the high discharge cells: The EV Power BMS works reasonably well with these packs, given their small size and universal application. Unfortunately the screen cycle time is painfully slow, but the safety features work immediately at least. 20191015_210157.jpg 20191015...
by jonescg
Oct 15 2019 2:42am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

https://www.abc.net.au/science/features ... ngswindle/
Well 12 years ago lots of energy was spent debunking that film. I shan't waste any more valuable time on it.
by jonescg
Oct 14 2019 11:55pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

That 'documentary' was full of glaring inconsistencies. In one part they're saying there's been a cooling trend, and then later are discussing why the sun is causing the warming trend. Despite the best radiation data showing no trend. It focussed on perceived political motivations, and not the techn...
by jonescg
Oct 14 2019 11:28pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Ah I remember this one. Being utter tripe, the ABC said they wouldn't screen it. Then the conservative press chided them.
So they folded, and in a classic case of 'giving airtime to the crazy minority in an effort to appear non-biassed' they screened it.
It's still rubbish.
by jonescg
Oct 14 2019 7:48pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Why do you take such issue with Sarah Hanson Young? It's a little creepy.

You could just ignore her, but no, you go out of your way to make memes about her.

Says more about you than her.
by jonescg
Oct 13 2019 8:51am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Yeah I'm all for innovation in renewable energy generation and dispatch, but solar thermal does not stack up. The same sum of money would have bought a decent PV array and some batteries and achieved far more.
by jonescg
Oct 12 2019 7:10am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Posting about single or multiple weather events as proof about climate change has always seemed pretty dumb to me but its never stopped anyone doing it. So here it is!!! The climate "Experts" said snow in Australia would be a thing of the past 10 years ago, except this year Australia's biggest ski ...
by jonescg
Oct 09 2019 7:54pm
Forum: Battery Technology
Topic: Congratulations chemists!
Replies: 3
Views: 225

Re: Congratulations chemists!

+1 on the congrats. Really a game changer. But why did it take so long to get the prize? That's the nature of the Nobel Prize - the significance of a discovery is often not known for many decades. Sometimes it's much faster, depending on the environment the discovery is made - Michael Smith won the...
by jonescg
Oct 09 2019 7:38am
Forum: Battery Technology
Topic: Congratulations chemists!
Replies: 3
Views: 225

Congratulations chemists!

John B Goodenough, M Stanley Whittington and Akira Yoshino, chemists who published the seminal work on lithium ion batteries in 1980, were awarded the Nobel Prize for Chemistry. https://www.abc.net.au/news/2019-10-09/nobel-prize-in-chemistry-for-lithium-ion-battery-development/11588298 :bigthumb: :b...
by jonescg
Oct 09 2019 6:53am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

In the 80's I knew guys in Queensland who would build a 'battery fire' consisting of heavy gauge corrugated roofing iron at a slight incline on a concrete slab. An enormous bonfire was prepared with about two dozen old car batteries in the middle. Once well alight they would stand back and watch the...
by jonescg
Oct 09 2019 12:47am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

The dead simple stuff is also the low value stuff. Recycling lead batteries is 99% circular because of the very high value of lead, and the desire to keep toxic metals out of the environment. I can't see why Li-ion battery recycling wouldn't be any different. Found this video well worth watching: ht...
by jonescg
Oct 07 2019 11:14pm
Forum: Battery Technology
Topic: observable symptoms as cells degrade
Replies: 10
Views: 277

Re: observable symptoms as cells degrade

285 Fig 3.JPG
285 Fig 3.JPG (108.65 KiB) Viewed 194 times
From this paper:
285 degradation diagnostics for Li Ion cells.pdf
(3.11 MiB) Downloaded 22 times
Sag is a sign of increased internal resistance, but not necessarily loss of lithium inventory, which is capacity loss.
by jonescg
Oct 06 2019 6:30am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

You spend precious waking hours making memes?

Wow.
by jonescg
Oct 05 2019 7:01am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Cephalotus wrote:
Oct 05 2019 3:26am
jonescg wrote:
Oct 04 2019 8:26am
Remember how all those stupid scientists in the 1970s were predicting an ice age?
No.

https://skepticalscience.com/ice-age-pr ... ediate.htm
I should have used the [/sarcasm] code :)
by jonescg
Oct 04 2019 8:26am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Remember how all those stupid scientists in the 1970s were predicting an ice age? Well, I don't actually recall seeing any worthy literature suggesting this was a possibility. If it was legitimate, there would be peer-reviewed papers documenting it. But alas, nothing. Turns out it's a myth, should y...
by jonescg
Oct 03 2019 11:49pm
Forum: General Discussion
Topic: Greyhound stopping western Canada service from Manitoba to BC
Replies: 15
Views: 533

Re: Greyhound stopping western Canada service from Manitoba to BC

Whenever my wife and I go back to Canada to visit, we take the train from Vancouver west. One Christmas we stopped in Edmonton and took the Red Arrow to Calgary, the other time we continued on to Winnipeg. Next time we will probably go all the way to Ottawa. The train is much more expensive, but com...
by jonescg
Oct 03 2019 7:47pm
Forum: EV Business World
Topic: Tesla Model 3
Replies: 1092
Views: 69277

Re: Tesla Model 3

I'm sure there's a way to spin this in a negative light... just wait :roll:
by jonescg
Oct 03 2019 7:10am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5284
Views: 210567

Re: Wind and Solar vs Coal, Gasoline, Nuclear

While Adam Smith got plenty right, I don't think he could have predicted that the tragedy of the commons would become a global phenomena. At a time when the oceans were teeming with fish, forests full of trees and seemingly abundant coal and coke, many of his prescriptions were well suited. I also d...
by jonescg
Oct 02 2019 8:27pm
Forum: Battery Technology
Topic: Tesla/Dahn Lithium-NMC532/AG chemistry
Replies: 19
Views: 741

Re: Tesla/Dahn Lithium-NMC532/AG chemistry

On the subject ot the Dalhousie laboratory results - this is a a very comprehensive paper, and sort of serves as a 'smack-down' challenge. Come up with a better chemistry than this and we'll eat our words. It seems the electrolyte composition was the greatest contribution to Li-ion battery chemistry...
by jonescg
Oct 02 2019 12:08am
Forum: General Discussion
Topic: White putty used in battery packs?
Replies: 11
Views: 300

Re: White putty used in battery packs?

I think it's just white silicone or sikaflex - a waterproof sealant?