narada pure lead battery

An Expert of Energy Storage Solutions.

Narada pure lead battery

With TPPL technology

By Walter. Jin

[email protected]

+86-18917365151

The UDS series battery

Stored Energy Solutions for a Demanding World!

About Pure-Lead battery

Different from any conventional VRLA or Gel batteries, the pure lead battery is made from highly pure

primeval lead and sulfuric acid at pharmaceutical grade, automatically produced by special procedure

Product definition Pure lead battery series

• Made from hyperpure material

• Very low internal resistance

• By Ultra-thin technology

• Strong resistance to corrosion

• Large surface of reaction ratio

• High compression ratio & energy density


Products overview Pure lead battery series

Model Voltage C10 Capacity Dimension (L*W*H)

12UDS100 12V 100Ah 359.0*108.0*287.0mm

12UDS150 12V 150Ah 559.0*125.0*283.0mm

12UDS170 12V 170Ah 558.0*125.0*310.0mm

12UDS190 12V 190Ah 558.0*125.0*316.0mm

12UDS200 12V 200Ah 558.0*125.0*316.0mm

12UDS100 12UDS150 12UDS170 12UDS190 12UDS200


Structural design highlights Pure lead battery series

Dimension of 12UDS190 & 12UDS200

--- Front terminal design for standard cabinet

application, which is flexible to access

--- With gas port installed in front in order to

facilitate the function of gas ventilation

Front terminal design Gas port

558mm

125mm

31

6m

m


Technology overview Narada core technology

TPPL

Technology

CCPP

Procedure

Alloy

Technology

Interface

Technology

Core

Technology

Separator

Technology

Sealant

Technology


High grade acid

Virgin lead oxide

Virgin lead

Narada TPPL technology stands for Thin Plate

Pure Lead, which is specifically designed for

harsh situation, in order to enhance rapid

charging acceptance and cyclic endurance for

a superior performance under extreme

environmental conditions to save energy.

The high purity of lead material is without any

toxic elements (Sb, Cd, As…etc.), which causes

no contamination to environment, above 98%

of raw material can be recycled.

TPPL definition

About TPPL technology Narada core technology


Conventional grid Pure lead grid

Advantage of Pure Lead Narada core technology

Conventional grid

--- Positive grid alloy is Pb-Ca-Sn, which easily

leads to corrosion at the grain boundaries

--- The grid growth reduces capacity of current

carrying and contact with active materials

Pure-lead grid

--- The very fine grain structure makes pure lead

grid far more resistant to corrosion

--- With the same design life, the pure lead grid

can be much thinner than conventional one


Alloy Pb0.3Sn Alloy Pb0.03Ag

Alloy Pb2.0Sn Pure Pb material


--- Best anti-corrosion performance

of pure-lead plate material

Research result

--- Pure lead plates are suitable for

the service of intensive duration

--- Pure lead plates has longer float

life as low charge current needed



Actual X-section comparison of positive grids


High pure lead=

• Low rate of discharge

• Low float charge current

• Low rate of grid corrosion

• Low gassing rate

• Long shelf and float life


Advantage of Thin Plate Narada core technology

--- The thin plate made by efficient

use of active pure lead material

Thin plate of pure lead

--- Increased grid conductivity in high

efficient recharge and discharge

--- Higher energy density makes the

final battery smaller and lighter

The thin plates made from high pure lead grids



Conventional grid

--- The cells are large, thick and heavy

--- The grid easily gets corrosion and growth

Pure-lead grid

--- The cells are small, thin and light

--- The grid is resistant to corrosion and growth

Under equivalent float life, the typical thickness

ratio of grid would be: Pb-Ca=1; Pure lead=0.6


Grid thickness comparison

Ratio=1 Ratio=0.6



Conventional grid

--- The energy density of battery is relatively low

--- The batteries occupy more space in installation

Pure-lead grid

--- The energy density of battery is relatively high

--- The batteries occupy less space in installation


Battery cabinet comparison Under equivalent float life, the typical volume

ratio of battery is: Pb-Ca=1; Pure lead=0.75~0.9


The CCPP procedure Narada core technology

The procedure of Continues Casting

The CCPP procedure of Narada consists of two processes: continues casting and punch plate. During

the CC process, the thickness tolerance of lead strip can be controlled within 0.025mm by constant

laser inspection, which is 4 times accurate than the conventional cast technology


The distribution curve of lead strip thickness

Th

ickn

ess

(m

m)



The technology of Punch Plate

Thanks to PP technology, the lead grid can be formed by stamping for continuous production and the

weight tolerance can be controlled within ±0.1g. Comparing cast process, it is quite efficient with

energy conservation and environment protection, whose productive capacity is enhanced 12 times

The PP grid The Cast grid




The distribution curve of grid weight

Weig

ht

(gra

m)


The technology of Casting Of Strip

The COS technology of Narada is also quite efficient in production with high degree of automation

and excellent welding quality, in order to eliminate errors caused by man-made factors, as a result, the

corrosion of bus-bar in negative poles can be effectively prevented.

The COS procedure Narada core technology


Fast charging performance Pure lead performance

The pure lead battery has an excellent charging efficiency, that can be charged within a short time

(100% full charge within two hours at 1C current, which is only one third time of conventional ones)

The cycle life at 25℃, 60%DOD

Cap

aci

ty (

%)

Cycles


High temperature performance Pure lead performance

The pure lead battery also has an excellent thermostability, which can be resistant up to +80℃ under

quite harsh environment, quite suitable for outdoor application, so that AC consumption can be saved

The cycle life under temp. impact of 60℃

Cap

aci

ty (

%)

Cycle


Long lifespan performance Pure lead performance

Thanks to little self-discharge, the pure lead battery has a quite long shelf life in storage up to 2 years,

besides, it also has good performance in both cyclic & float application with design life above 15years.

The cycle life at different DOD

Dis

charg

e c

ycl

es

DOD in %


Economical performance Pure lead performance

High charging efficiency and wonderful high temperature performance make the pure lead batteries

quite economical especially in energy conservation, which contributes a lot in saving operation cost

TCO comparison at standby scenarios

TC

O i

n %

of

stan

dard

ap

pli

cati

on

Years Years

Pure lead

Conventional


Advantages in conclusion Pure lead performance

Advantages overview

• Rapid charging acceptance

• Superior shelf and design life

• Harsh environment endurance

• High cyclic & float performance

• Quick recovery from over-discharge

• High integrity for maximum flexibility

• Low operation & maintenance cost

40%

50%

80%

50%

85%

50%

25%

115%

Cost analysis for stationary applications

OpEx

CapEx

Maintenance

Cooling

expense

Maintenance

Average

annual cost

Procurement

Cooling

equipment

Site investment

Second

site visit Network

improvement

Thanks!