TAIPEI, Taiwan, Dec. 17, 2018 /PRNewswire/ -- The engine is the
heart of a car. Well, for an
electric vehicle (EV), that cliche
won't apply -- if an EV ever had a heart, it is the EV's
battery. In vogue was Tesla's Model 3 battery pack, boasting
an energy density of 272 Wh/L. But drivers can't be more wrong
if they think that's already
the crown jewel of the EV heart. PLG's BiPolar+ 3D Structure
Solid-State EV Battery Pack at the 2019 CES, attracted the
spotlight with a smashing pack-level energy density of 537
Wh/L, but also 50% smaller, 30% lighter, and
30% cheaper than the Model 3'. The CES' bestowing the
Innovation Award 3 years in a row to PLG showed the industry's
unequivocal consensus where the future of EV batteries lie: PLG
Solid State Batteries (PLG SSB). Gone also is the
industry's long-held pessimism that real pragmatic SSB EVs are
always years away -- the PLG SSB is ready for mass
production TODAY.
https://bit.ly/2Ln37iG (Figure 1) Comparison of Energy Density
between Conventional Battery Pack and PLG Battery Pack
The SSB pack built by PLG is based on three generations of SSB
technologies which PLG have developed over
the years. The 1st-generation technology is
represented by lithium ceramic battery, which replaced
the explosive liquid/jelly type polymer electrolyte with
oxide ceramic electrolyte that greatly improved the
battery's stability as well as safety, making possible
the use of highly active anode/cathode materials to
create high energy density SSB. The 2nd-generation
technology, the BiPolar+, announced in 2018,
achieved another global industry breakthrough that allows
simultaneous stacking of pieces of inlays (combination of
cathode/electrolyte/anode) in both series and parallel inside one
single cell package to create high energy battery cell with voltage
of 60V or higher. This reduces the number of battery
cells needed in single modules, and simplifies
BMS (battery management system) at the module level. The
3rd-generation
technology is the "BiPolar+ 3D Structure
Solid-State EV Battery Pack", announced as the CES
Innovation Award winner. This new technology
revolutionized the composition of EV batteries on both the cell and
pack levels.
BiPolar+ 3D Structure Solid-State EV Battery Pack
PLG's goal in battery pack design is to achieve maximum
pack energy density by increasing the weight/volume proportion of
battery cells in the overall battery pack, and by reducing the
proportion of those other parts that do not directly produce
energy. Due to the highly hazardous nature of liquid/jelly type
lithium batteries, conventional battery packs need intensive
protection, BMS (battery management system) and cooling
systems for stability and safety. These protective systems
usually take up 47~63% of the conventional battery pack's overall
volume/weight, resulting in correspondingly low proportion of cells
in the pack (37~53%). In contrast, with PLG's battery pack
technology, the proportion of cells in a pack can now exceed
79%. This substantial increase in cell utilization rate is
attributable to two factors: 1. The PLG pack consists of only
four cells; 2. Each PLG cell has built-in heat
dissipation systems.
1. Pack consists of only four
cells
In addition to the PLG BiPolar+ technology which
enables the stacking of inlay pieces in series and parallel
simultaneously inside single cells, PLG made yet another major
breakthrough by achieving the series/parallel simultaneousness both
vertically and horizontally at the same time to significantly
increase space utilization rate, creating big cells that
attain even higher voltage and energy (85.2V, 20KWh), and only
4 cells are needed to make an 80KWh EV battery pack. Compared
with Tesla Model 3's battery pack that require 4,416 cells to
achieve similar functions, PLG's lead is in the magnitude of
elevated dimensions. This dramatic reduction in cell number
enables PLG to adopt simple BMS, save packaging &
connecting material between cells, increase energy density of
the battery pack, and reduce cost of materials.
https://bit.ly/2Ln37iG (Figure 2) PLG BiPolar+ 3D
Structure Solid-State EV Battery Cell (85.2V, 20KWh)
https://bit.ly/2Ln37iG (Figure 3) PLG BiPolar+
3D Structure Solid-State EV Battery Pack
2. Cell with built-in heat
dissipation system
SSB's performance is much more stable in high and low
temperatures than conventional
Li-battery, therefore complicated temperature control
system can be simplified. Also, results of tests conducted by
European EV makers show that PLG SSB's thermal conductivity is
three times higher than that of conventional lithium battery.
Moreover, the PLG cell is the world-only with a built-in heat
dissipation system filling the room between serial inlays with
thermal conductive gel to evenly conduct heat outside
cell's aluminum housing. In addition, liquid cooling
tubes are installed on one side of cells to achieve
excellent thermal management. This greatly simplified cooling
system can save 20~50% of pack space.
6 years ago, PLG was the first in the world to achieve mass
production of SSB. And today, while PLG is still the
world's-only that has ever possessed the SSB mass production
capability, this time it shocked the entire industry again
with breakthroughs beyond the cell level - the PLG EV battery pack
- a new horizon of pack mechanical design tailored for SSB, which
has achieved the goal of low cost electric vehicle with
high energy density batteries,. The pack technology has been
introduced to and are now tested by EV makers in the U.S.,
Europe, China, and Japan. Currently, PLG is engaged in
in-depth cooperation discussions with a German auto giant. It
is expected that the first EV powered by "BiPolar+ 3D Structure
Solid-State EV Battery Pack" may
make its debut by as early as 2019.
PLG BiPolar+ 3D Structure Solid-State EV Battery
Pack will be exhibited at the CES 2019 (runs on
January 8-11 in Las Vegas, NV), LVCC North hall, booth no.
3531.
Welcome to witness this glorious moment with PLG, the CES 2019
Innovation Award HONOREE.
To learn more about ProLogium, visit:
http://www.prologium.com/
Should you have any questions, please feel free to contact
PLG Marketing Dept./Sam sam@prologium.com.tw
No.6-1, Ziqiang 7th Rd., Zhongli Dist., Taoyuan City 32063, Taiwan
Tel:+886-3-4521991 ext.18802
www.prologium.com
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SOURCE ProLogium Technology