The normal discharge voltage
is 1.2 miles
additional was covered after the regular run, the
average speed being 10.original Edison storag]e battery, known as
the type was put out about seven years ago.
Elemeut removed from
can Edison type
A-4 cell. The
type cell marked definite step invention, in
that proved the commercial success wholly new
voltaic combination, radical departure from the lead
plates acid electrolyte.
for over decade, Thomas Edison has been working produce type storage bdttery better than the old lead type. Edi
son had set his staff to
work entirely new
'line, and the outcome was 2.SCIENTIFI[ AME RICAN January 14, 191 1
Thomas Edison's Latest Invention
A Storage Battery Designed and Constructed from the Automobile User's Point View
By Joseph Baker, E. Edison's
work once more exemplified
in that has held uncompro
misingly the automobilist's
point view. market and resume experi
ments improve the form of
the voltaic combination, or
der obtain' better electrical
Positive plate the rightwith nicl.
THOMAS EDISON'S LATEST INVENTION
.
The . automo
. Mr.1
miles, was Babylon, Long Island, way of
Mineola and Plainview, returning the southerly
route through Massapequa and Freeport.
The new series experiments
lasted four years, and resulted
in the present commercial Edi
son cell, known the type A. This cell is
not actual.0 volt per cell. These were the
very qualities demanded by
the automobile user. the following
article the reader will find description the new battery, written after painstaking study its manufacture.)
Weldin&, the steel cans for the cell.ol
hydrate active material perforated
tubes. From these early
beginnings, many inventors
have sought increase the
electrical efficiency, and the
durability "life" the
cell, and reduce the cost of
manufacture.
It was the early
eighties that the public be
gan think about "stored
electricity" which could be
bought the can, it
were, like any other com
modity.
He saw that there are two view
points that the electrical
man with his instruments, his
rules for efficient operation and
reasonable life the battery,
his absolute knowledge that the
same care should giveri a
vehiele battery that given a
valued horse even railroad
locomotive and that the
automobile driver, who simply
wishes somewhere with
his car, and who, when ar
rives somewhere, wishes to
go back. This figure the average four
trips, each· with New York city (Manhattan) the
starting point. Negative plate the left
with iron oxide active IDt'tterial in
perforated fiat pockets. Edison the front seat. Stored electricity finds
its greatest usefulness in
propelling cars and road
vehicles, and has been
for this application, pri
marily, that the Edison
storage battery has been de
veloped. Edison nine years ago. How well he
has succeeded aligning his battery this ideal,
the automobile driver will appreciate from the figures
of actual performance that are now available.
This cell now being actively
marketed for electric vehicle
work three sizes, the A-4,
A-6, and A-8 cells, having re
spectively and positive
plates and and negative
plates, the two outside plates of
the element being negatives. The map
distance this route 90.93 miles per hour. His new cells are now actual wmmen!ial use. And this long
promised battery the highly
practical nature Mr. Believing that the lead
cell had too many inherent weaknesses realize the
f promise "stored
electricity" motive
power for vehicles, Mr.
nickel-iron -
mersed alkaline elec
trolyte, lighter and cleaner
than the lead cell, with
lower cost operation and
upkeep offset its higher
initial cost, and possessing
hitherto unheard-of proper
ties remaining undeteri
orated either over
charging being left un
chargJed. The need the
electric vehicle was recognized
by Mr.
faced, realized, that the eleCtric vehicle user
will work his car the utmost, and will limited
only repairs and breakdowns just the average
gasoline car driver has always operated his car to
the limit repairs and breakdowns. Emile
Faure brought out the
pasted·plate battery in
1879, and Charles J<'. The fact be
Interior type 4-A Edi
son cell and cover of
can with terminal stuff
in� box, gas valve, and
filJang aperture. The longest these trips, 172.35 miles single charge was
made family-type electric vehicle equipped with
the new battery. re
cent average 144. last has succeeded. Machine for electro-deposition nickel for use positive plates.nued page 45. each size
the dimensions the individual
(Conti.9 miles, and 81. Lead plates were
immersed acid
electrolyte, Gaston
Plante 1861. This dream has
come true the new
Edison nickel-iron storage
cell. The
cell certain
weaknesses service,
which caused the inventor
to withdraw from the
A storage battery omnibus.
properties and longer lifp.il& U�••
Coml2lete 4·plate element of
EdIson electric vehicle cell
removed from its contuining
can ShOW the structure.
LD, indeed, the idea the
commercial storage bat·
tery.2, and battery re
garded completely discharged
when shows average of
1.
Brush 1881 introduced
improvements which made
the lead battery factor electric vehicle work,
producing cell which would give eight watts of
electric power per pound of
material
