Slashdot Mirror
Environmental Cost of Hybrids' Battery Recycling?
LostMyBeaver writes "I have been considering the purchase of an electric or hybrid vehicle for some time. The biggest problem I have currently is that both technologies make use of rechargable batteries. The same tree-huggers telling me gasoline is bad are telling me that batteries are bad too. I'm only partially knowledgable in this area, but it appears the battery technologies are generally based at least on lithium ion, nickel metal hydride, lead acid and nickel-cadmium. I was hoping someone on Slashdot would be knowledgable enough to explain the environmental cost of recycling these batteries. If I understand correctly, after these chemicals are 'spent' so the cells no longer maintain a charge, they are not useful for producing new batteries. I can only imagine that the most common method of recycling the cells is to store the toxic chemicals of the batteries in barrels and refilling the cells with new chemicals. This sounds like an environmental disaster to me. Is there someone here that can help me sleep better at night by explaining what really happens?"
Stolen from Hybridcars.com:
How often do hybrid batteries need replacing? Is replacement expensive and disposal an environmental problem?
The hybrid battery packs are designed to last for the lifetime of the vehicle, somewhere between 150,000 and 200,000 miles, probably a whole lot longer. The warranty covers the batteries for between eight and ten years, depending on the carmaker.
Battery toxicity is a concern, although today's hybrids use NiMH batteries, not the environmentally problematic rechargeable nickel cadmium. "Nickel metal hydride batteries are benign. They can be fully recycled," says Ron Cogan, editor of the Green Car Journal. Toyota and Honda say that they will recycle dead batteries and that disposal will pose no toxic hazards. Toyota puts a phone number on each battery, and they pay a $200 "bounty" for each battery to help ensure that it will be properly recycled.
There's no definitive word on replacement costs because they are almost never replaced. According to Toyota, since the Prius first went on sale in 2000, they have not replaced a single battery for wear and tear.
As a rock-in-roll Physicist once said, No matter where you go, there you are.
Great. So now we'll have to worry about people tearing open the backs of our cars to remove our _perfectly good, multi-thousand-dollar_ battery packs to sell them for $200 to feed their addictions (heroin, alcohol, food, gasoline, etc.).
Caveat - I used to work for Tek Cominco, and have smelted alloys, been a power engineer, and so on.
First, you have to think of the entire life cycle of both production, shipping, usage, and disposal.
Production: depending on the battery used (and there are multiple types being looked at), it may be produced from minerals from say Ontario or BC - in which case it was processed using a combination of methods, some of which use hydroelectric power (green). Acids are used in all metal production pretty much, so you pushing a giant truck down the road involves more acid than the batteries for a plug-in-hybrid which quite frankly has less mass. Smelting frequently uses coal, of course, so it depends on the source and composition of the coal - high-sulfur high-pollution like in China or low-sulfur low-pollution like in Canada. It is NEVER no pollution.
Shipping - again, the parts and batteries will be shipped on a boat using dirty bunker fuel (even in clean ports like LA they only use clean fuel when near the port, a small infinitesimal fraction of fuel usage).
Operation - if you rarely use a car and it just sits there, then your negative pollution cost of operation for batteries is higher - but your pollution of roadways from diesel/gas would be higher still - if you use it a lot it depends on the power source - if hydro, wind, solar and especially if time-shifted so it charges when power demand is low it has lower impact. If you live in a place where electricity comes from coal it's dirtier.
Recycling - if it is - and it will, these are expensive batteries - recycled, the cost of mining and production of the batteries is vastly reduced (anywhere from half to one-twentieth the pollution of getting it again). This is why we recycle scrap from cars and cans, it's cheaper than mining the minerals again.
In general, all things being equal, with typical usage, you will ALWAYS create less pollution with a plug-in-hybrid than with a non-hybrid.
ALWAYS.
Don't confuse battery warranty life with operational battery life, by the way.
-- Tigger warning: This post may contain tiggers! --
Not only do these batteries last a long time, due to careful maintenance by the car's computer and optimization of charge/discharge patterns, they are fully recyclable and less poisonous when compared to lead batteries.
Most people believe the lifecycle of a battery dies when the car is totaled. Not true. Batteries are being salvaged and sold on ebay to continue their services past the totaling of the car. There has also been progress of mixing n matching individual modules within battery packs, to further extend the usefulness of each part of the battery. Hybrid car batteries are made up of many modules. When the battery fails, its only one or two modules that fail, and can be replaced with other modules that have the same charge/discharge characteristics.
These dead modules can then be sent to Toyota to be recycled, the nickel extracted and re-used in new batteries.
Umm *pause for twitching*, where do you park?
Some people are only alive because it's against the law for me to hunt them down and kill them.
You do realize that the source study (http://cnwmr.com/nss-folder/automotiveenergy/)has been thoroughly debunked in the same Slashdot discussion that you linked to? If you troll, at least put some effort into it.
Those who can, do. Those who can't, sue.
You forgot 8" floppy disks... Can't... Have... Enough....
Thankfully, those batteries are heavy, and located in hard to reach places. The batteries in the latest Prius weigh 45 Kgs and are located in the trunk of the car, partially underneath the back seat.
I don't see anyone spending a good 30 minutes tearing open the Prius with powertools, only to run around with a 100+lb weight. At that point, they might as well steal the entire car.
Those who can, do. Those who can't, sue.
According to my mechanic, now that muffler fluid and blinker fluid are the same, the cost to replace has come down at least 10%. He says they are still working on making cheaper muffler bearings however.
The manifest absurdity of it is too obvious to require explanation
It's the muffler bearings that need periodic replacement, and the *blinker" fluid that needs to be replenished from time to time.
Both products can be found here;
http://kalecoauto.com/index.php?main_page=product_info&products_id=10
http://kalecoauto.com/index.php?main_page=product_info&cPath=2&products_id=6
Ian Ameline
As a Prius owner, let me assuage your concerns. There are two batteries in the Prius: the main hybrid battery that provides the power to move the car and a standard 12-volt battery that is used for starting the vehicle, running the radio, and all of the other things you would expect from a normal car battery.
The former has no user-serviceable parts and can kill you if you're careless. The harder to access in this case the better. The latter is easily accessible from the trunk and can be used with standard jumper cables to start someone else's car or similar functions.
If the main hybrid battery needs replacement, you sure as hell don't want to do it yourself. That thing is 330 volts, 6.5 amps, and a hell of lot bigger/heavier than a standard car battery.
- I don't need to go outside, my CRT tan'll do me just fine.
I've got a first-gen Prius, bought in 2000. While I've had to replace the 12V standard car batter, the main hybrid battery's fine. As there are no Priuses substantially older than mine, I'd say that I'm a good example, as are the friends who have the exact same model let alone the later models.
- I don't need to go outside, my CRT tan'll do me just fine.
Well said Bruce, I remeber back in 1977 when I was at tech school for the local Telco. There was a 50v power supply for exchanges back then, running from a huge battery, capable of 5,000 amps.
A lecturer was showing us some details of a connector strip when he got his gold wedding ring across the battery and earth. It was VAPOURISED off his finger!
I will never forget the smell!
I never wore a watch or ring again at work after that.