GDI's 100% silicon anodes paired with CNT enabled cathodes for high energy, high power, and 15 minute fast charging Li-ion battery chemistry.

GDI has developed a next generation 100% silicon anode, patented protected technology that is directly bonded to copper foil and other advanced substrates for high power and high energy. This anode technology is capable of over 2000mAh/cc in active material, and loadings as high as 5mAh/cm2. Commercial cathodes have been limited to around 4mAh/cm2 of areal energy, and at those loadings have poor power and fast charging capabilities. As a result most of the market needs to choose between high power, fast charging cell chemistries with low energy ratings, or high energy cells that cannot charge fast and have lower power. This presented GDI with the need to develop a cathode that can provide both high areal energy, and deliver high C-rates to our anode. Thus GDI has started working with a key partner on formulating a new type of cathode to match in full cells with GDI's anode.The result is a cathode with high areal loadings that can still provide the silicon anode with high power when needed, and achieve hundreds of fast charging cycles without having to switch from an energy cell format to a power cell format. As a result GDI has developed a cell architecture that can function as both an energy cell or power cell for different applications and depths of discharges, without thinning the electrodes and losing energy density.