The Panasonic NCR21700T is a high-energy-density cylindrical Lithium-Ion battery. As an evolution of the 18650 form factor, the 21700 size allows for greater capacity and improved thermal management. The "T" designation typically signifies a specific revision optimized for high capacity and reliable discharge rates, often found in electric vehicles (EVs), energy storage systems (ESS), and high-end industrial applications. This cell offers a balance between volumetric energy density and power capability.
The Panasonic NCR21700T is a high-performance lithium-ion battery cell that has gained significant attention in the industry due to its impressive specifications and capabilities. As a leading manufacturer of rechargeable batteries, Panasonic has established a reputation for producing high-quality cells that cater to a wide range of applications, from consumer electronics to industrial and automotive uses.
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These cells use an NCA (Nickel Cobalt Aluminum) chemistry. While they offer high energy density, they require sophisticated thermal management because they generate significant heat during fast charging. The "Tesla" Connection: panasonic ncr21700t datasheet
When integrating the NCR21700T into a pack, consider the following:
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Despite the cell's widespread use and strong market presence, a standard PDF datasheet for the NCR21700T is not available through Panasonic’s official industrial or consumer channels. It is believed that the NCR21700T was produced for Panasonic's partnership with Tesla and was not intended for broad commercial sale as a discrete component, which explains the absence of a public datasheet. This cell offers a balance between volumetric energy
Regularly keeping the cell resting at a maximum 4.25V+ reduces lifespan.
| Parameter | Value | |-----------|--------| | Diameter | 21.0 mm ±0.2 mm | | Height | 70.0 mm ±0.3 mm | | Weight (approx.) | 68 g |
Unlike some 21700 cells, the NCR21700T has . You must add external overcharge, overdischarge, and short-circuit protection when designing a battery pack. If you want, I can: These cells use
When building battery packs with the NCR21700T, a Battery Management System (BMS) must be implemented to protect against: Preventing voltage from exceeding 4.2V.
The datasheet includes a cycle life curve showing:
When assessing the NCR21700T, it is critical to understand that not all cells sold under this model number are identical, and the official performance metrics appear to have been clarified unofficially through real-world use.
You're looking for the datasheet of the Panasonic NCR21700T battery cell. Here are a few sources where you can find it: