2010 Prius - battery specs

[john1701a]

I'm currently working on the new Info-Sheet and User-Guide for the 2010 Prius. Filling out the generation matrix comparing the Original, Classic, and Iconic models has left 3 unanswered questions:

• Battery-Pack Energy (W/kg)
• Battery-Pack Voltage
• Battery-Pack Weight (lbs)

Anyone have that detail available for the 2010 model?

.

[qbee42]

Originally Posted by john1701a

I'm currently working on the new Info-Sheet and User-Guide for the 2010 Prius. Filling out the generation matrix comparing the Original, Classic, and Iconic models has left 3 unanswered questions:

• Battery-Pack Energy (W/kg)
• Battery-Pack Voltage
• Battery-Pack Weight (lbs)

Anyone have that detail available for the 2010 model?

.

Same specs as the Gen II. It uses the same battery, only repackaged in a modular format.

Tom

[HTMLSpinnr]

Repackaging may affect overall weight, but the energy/voltage has not changed.

[FireEngineer]

^ With what these guys said John. But when I go to the Chicago event I'll recheck with the Toyota people.

Wayne

[usbseawolf2000]

The battery pack info with the enclosure is still not known. The number of cells are the same so it should be 201.6 V.

Cell level energy and weight are available on the PEVE page.

Plastic Case Prismatic Module | Panasonic EV Energy Co., Ltd.

[Patrick Wong]

Originally Posted by HTMLSpinnr

Repackaging may affect overall weight, but the energy/voltage has not changed.

If this is true, then I am wondering why Toyota-provided info shows different traction battery power specs for 2009 vs. 2010:

2009: 28 hp
Toyota Prius - 2009 Performance & Specifications

2010: 36 hp, per the 2009 NAIAS Media Information DVD jacket that we received in Detroit.

I had assumed that they are getting more power out of the battery by further reducing internal resistance.

[HTMLSpinnr]

They may have increased the overall output current of the battery pack. I'd be worried about longevity as a result though if the module itself isn't changed.

[ken1784]

Originally Posted by HTMLSpinnr

I'd be worried about longevity as a result though if the module itself isn't changed.

I think you don't have to be worried about it, but Toyota warranty division does.

Anyway, Panasonic EV Energy supplies a Metal Case Module too since 2005 for Highlander/RX400h. It is 9.6V module, but site says 6cell 7.2V module is possible.
Metal Case Prismatic Module | Panasonic EV Energy Co., Ltd.
The basic specifications are same as plastic one, but I believe the metal one is stronger in heat stress than plastic.
Camry Hybrid has 244.8V pack, which means it uses 34 7.2V modules.
I believe TCH uses metal module since it introduced after THH/RX400h.

Also, didn't we hear from Chief Engineer the cooling function on the 2010 Prius battery pack was improved?
I believe the new battery pack will be more powerful and reliable than the current even the basic specification numbers are same.

Ken@Japan

[bwilson4web]

Originally Posted by ken1784

. . .
Also, didn't we hear from Chief Engineer the cooling function on the 2010 Prius battery pack was improved?
I believe the new battery pack will be more powerful and reliable than the current even the basic specification numbers are same.
. . .

Heat is the enemy and improved cooling and temperature management is the key.

Bob Wilson

[HTMLSpinnr]

Originally Posted by bwilson4web

Heat is the enemy and improved cooling and temperature management is the key.

Bob Wilson

Given where I live, I still worry. I'm glad my '04's made it to 110,000 miles on the original pack w/ light (judicious) usage of EV. I'm not as worried about making to 100,000 warranty, but the "lifetime" padding may have gotten much shorter, and I worry that we could realistically see 120,000-150,000 HV battery pack replacements as a norm. I'd hate to think Toyota built that into the long-term income strategy of the car.