电动汽车 续航 英语论文

Title:

电动汽车的续航问题研究

Research On The Endurance Of Electric Vehicle

Outline

1

Introduction

1.1

Research Background

1.1.1

Definitions of Super capacitance and

Lithium-ion battery

1.1.2

Research at home and abroad

1.2

Research Framework

1.2.1

The Method of Super capacitance and

Lithium-ion battery

1.2.2

Research Question and Significance

2

Research Results

3

Analysis and Interpretation

4

Conclusion

5

References

1

Introduction

Electric

cars

now

encounter

a

very

annoying

problem

-

battery

by

the

Chevrolet Motor Company production of automobile volt cars in the pure electric case

(without

lights,

air

conditioning),

can

be

normal

travel

about

80

km,

calculated

in

accordance

with

modern

city

life,

everyday

traveling

is

approximately

40

km

operation. But if we in accordance with the normal wear and tear, after a number of

years,

the

battery

will

be

not

so

high

performance

like

before.

What

’

s

more,

a

charging need for about five hours, soit

’

s not suitable for long distance driving, volt

named as increases the range of hybrid electric vehicle, meaning that when the battery

power loss, gasoline engine startsworking, to charge the battery, this car can continued

life

about

570

km.

In

summary,

the

Chevrolet

volt

car

actually

takes

the

gasoline

engine

as

the

main

body,

motor

as

subsidiary

bodies

to

life,

indeed

so

can

reduce

emissions for the purpose of, but the pollution continues and just delays. At the same

time, including Lexus ct200h and the Roewe 750, BYD E6 and most of the electric

car on the market have not gotten rid of the gasoline engine as the main body of the

basic concept, but an increase of the basic components of an electric car, but still a car

living

gasoline.

Although

now

automobile

use

the

brake

energy

conversion

into

electrical energy, and in order to store in power in the trunk, take the power to electric

drive,

in

fact,

these

are

not

from

practical

condition

to

solve

the

battery

driven,

because

in

order

to

convert

the

electrical

energy

is

limited,

we

need

to

continuous

electrical energy consuming. But now we have some new thoughts about the life of

battery-Super capacitance,Fast charge technology andCharging pile and so on.

1.1

Research Background

With the gradual depletion of oil,our country and even the whole world are more and

more attention to the development of new energy vehicles such as the electric

the car is so huge, and now the single battery capacity is still cannotreach the electric

car design standards, so it

’

s very worth studying that how can we solve the problem of

electric vehicle battery life.

1.1.1

Definitions of Super capacitance and Lithium-ion battery

Supercapacitance

which

is

developed

by

the

polarization

of

the

electrolyte

to

the

storage of electrochemical element is an electricity storage device. It is different from

the

traditional

chemical

power

supply,

it

is

a

kind

of

power

which

is

between

the

traditional capacitor and battery, and has special performance, which mainly depends

on

the

electric

double

layer

and

the

oxidation

and

reduction

of

the

charge

stored

energy

of

the

pseudo

capacitance.

But

in

the

process

of

its

energy

storage

is

not

a

chemical reaction, the process is reversible, it is because the super capacitor can be

repeatedly charge and discharge hundreds of thousands of times. The basic principle

and other types of electric double layer capacitors are the use of activated carbon and

electrolyte composition of the double layer structure of the double layer structure to

obtain a large capacity.

Lithium-ion batteryis a rechargeable battery, which depends mainly on the lithium ion

between

the

positive

and

the

negative

electrode

to

work.

In

the

charging

and

discharging process, the Li+ is embedded between the two electrodes. When charging,

the Li+ is removed from the positive electrode, and the cathode is in the rich lithium

state

after

the

electrolyte

is

embedded.

Battery

generally

uses

a

lithium

containing

material as the electrode, which is a modern high performance battery generation.

1.1.2

Research at home and abroad

In our country, BYD is the leader of

electric vehicles’

research. He was the first car

manufacturer to launch an electric car in China.

But in the another country, Tesla of Silicon Valley has the most advanced technology

of

electric

car

in

the

world,

their

car

can

keep

moving

300

kilometers

and

more

without charging.

However,little attention has been attached to the issue thatdoes it is limited in our car

that we only can create an electric car with 300 kilometers

This paper intends to explore sucha question: how to

increase the life of electric car.

1.2

Research Framework

1.2.1

The Method of Super capacitance and Lithium-ion battery

The

running

vehicles

whose

changes

are

very

huge

need

frequent

acceleration

and

deceleration,

the

frequent

charge

discharge

should

is

the

strengths

of

the

super

capacitor, super capacitor is the physical reaction, fast charge and discharge are high

efficiency, it has good reliability, and the control system requirements is not high, if

let

the

super

capacitance

play

power

frequent

input

and

output

function,

the

super

capacitor

and

battery

which

have

their

respective

advantages

can

be

fully

play

out,

electric cars are demanding requirements for the battery itself, so you can through the

super capacitor to avoid the problem.

1.2.2

Research Question and Significance

Question 1: Why our electric car

’

s is unsatisfactory now.

Question 2: In which way can we solve the problem of the battery life?

Research Significance: To this research, we can discuss some way to improve the life

of electric vehicle’s batteries. As we know, electric car is the development direction of

the

future,

and

with

the

gradual

depletion

of

traditional

power,

air

pollution

in

big

cities

of

our

country

couldn't

be

ignored.

16

cities

in

China

were

included

in

the

world's

most

serious

air

pollution

in

20

cities.

In

our

country,

car

ownership

is

per

1000 person average 10 cars, but with the development of economy and the lack of

petroleum

resources,

and

the

situation

of

having

been

imported

tens

of

millions

of

tons

of oil, if Chinese Automobile Holdings

at

the

global level.

Every 1000 people

have 110 cars, China's car ownership will become 10 times increase, oil imports will

become a big problem. Therefore in our research and development in electric car are

not

a

temporary

short-term

measures,

but

a

significant,

long-term

strategic

considerations.

2

Research Results

To our research, there are 4 reasons that why our electric car

’

s is unsatisfactory now.

First, continued driving mileage limit.

Electric

vehicles

used

in

the

current

market

after

a

charging

mileage

is

generally

100-300km, and this figure is usually required to maintain the appropriate speed and a

good

battery

regulation

system

whi

ch’s

to

be

guaranteed,

and

the

vast

majority

of

electric

vehicles

in

general

driving

range

is

only

50-100km.

Comparing

with

the