Panasonic Develops New Higher-Capacity 18650 Li-Ion Cells; Application of Silicon-based Alloy in Anode


AGAIN!
News from Panasonic Corporation which announced (highly dengerous) the development of two new 18650-type (18 mm in diameter, 65 mm in height) high-capacity lithium-ion battery cells for use in laptop computers and in energy applications including electric vehicles.
The newly-developed but not released yet with high-capacity 3.4 Ah and 4.0 Ah lithium-ion battery cells (will?) have an improved nickel-based positive electrode (Panasonic’s proprietary positive electrode material based on LiNiO2, allowing for high capacity and durability). The 4.0 Ah cell uses a silicon-based alloy for the negative electrode instead of carbon, and offers a volumetric energy density of 800 Wh/L, compared to the 620 Wh/L in the current 2.9 Ah cells.
In October, Panasonic Corporation announced a 1.5 kWh battery module from 18650-type (18 mm in diameter x 65 mm in length) lithium-ion battery cells to provide energy storage solutions for a wide range applications. Multiple units can be connected in series and/or parallel to store energy generated by home-use photovoltaic (PV) systems and fuel cells or power electric vehicles (EV).
Panasonic holds 337 patents in Japan and 136 in other countries including pending applications on the new battery cells.

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