Your smartphone batteries emit over 100 toxic gases!

October 21, 2016

Washington, Oct 21: More than 100 potentially fatal gases are produced by the batteries found in billions of consumer devices such as smartphones and tablets, a new study has warned.

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The research identified over 100 toxic gases released by lithium batteries, including carbon monoxide, which can cause strong irritations to the skin, eyes and nasal passages and harm the wider environment.

Researchers from the Institute of NBC Defence in the US and Tsinghua University in China said many people may be unaware of the dangers of overheating, damaging or using a disreputable charger for their rechargeable devices.

In the new study, they investigated a type of rechargeable battery, known as a "lithium-ion" battery, which is placed in two billion consumer devices every year.

"Nowadays, lithium-ion batteries are being actively promoted by many governments all over the world as a viable energy solution to power everything from electric vehicles to mobile devices," said Jie Sun, lead author and professor at the Institute of NBC Defence.
"The lithium-ion battery is used by millions of families, so it is imperative that the general public understand the risks behind this energy source," said Sun.

Sun and her colleagues identified several factors that can cause an increase in the concentration of the toxic gases emitted. A fully charged battery will release more toxic gases than a battery with 50 per cent charge, for example.

The chemicals contained in the batteries and their capacity to release charge also affected the concentrations and types of toxic gases released.

Identifying the gases produced and the reasons for their emission gives manufacturers a better understanding of how to reduce toxic emissions and protect the wider public, as lithium-ion batteries are used in a wide range of environments.

"Such dangerous substances, in particular carbon monoxide, have the potential to cause serious harm within a short period of time if they leak inside a small, sealed environment, such as the interior of a car or an airplane compartment," Sun said.

Almost 20,000 lithium-ion batteries were heated to the point of combustion in the study, causing most devices to explode and all to emit a range of toxic gases.

Batteries can be exposed to such temperature extremes in the real world, for example, if the battery overheats or is damaged in some way.

The researchers now plan to develop a detection technique to improve the safety of lithium-ion batteries so they can be used to power the electric vehicles of the future safely.

"We hope this research will allow the lithium-ion battery industry and electric vehicle sector to continue to expand and develop with a greater understanding of the potential hazards and ways to combat these issues," Sun concluded.

The study was published in the journal Nano Energy.

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News Network
April 26,2024

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Bengaluru: Voting was underway on Friday in the first phase of Lok Sabha polls in 14 constituencies in Karnataka. Polling began at 7 am and will end at 6 pm.

A total of 247 candidates -- 226 men and 21 women -- are in the fray for the first phase covering most of the southern and coastal districts, where more than 2.88 crore voters are eligible to exercise their franchise in 30,602 polling stations.

The Congress and BJP are locking horns on the electoral battleground again in less than a year. This election is witnessing a straight fight between the ruling Congress and the BJP-JD(S) combine unlike the Assembly elections in May last year which witnessed a triangular contest among the three parties.

The state has a total of 28 Lok Sabha constituencies. The second phase of polling in the remaining 14 seats is on May 7.

In the first phase, while the Congress is contesting in all 14 seats, BJP has fielded nominees in 11 and its alliance partner JD(S), which joined the National Democratic Alliance in (NDA) in September last year, in three -- Hassan, Mandya and Kolar.

Besides the three, the segments where elections are being held on Friday are: Udupi-Chikmagalur, Dakshina Kannada, Chitradurga, Tumkur, Mysore, Chamarajanagar, Bangalore Rural, Bangalore North, Bangalore Central, Bangalore South and Chikkballapur.

According to Election Commission, 1.4 lakh polling officials are on duty for the first phase. Besides them, 5,000 micro-observers, 50,000 civil police personnel, and 65 companies of Central Paramilitary Force and State Armed Police force of other States have been deployed for security. All the 2,829 polling stations of Bangalore Rural parliamentary constituency are being webcast.

"This is as per the request of our returning officers and observers; so we have given more than double the Central paramilitary force for Bangalore Rural constituency. Seven companies of Central paramilitary forces have been inducted at the constituency since April 22," Karnataka Chief Electoral Officer Manoj Kumar Meena has said.

In fact, out of the total 30,602 polling stations in the first phase, 19,701 are webcast, and 1,370 covered via CCTVs, he had added. Chikkaballapur has a maximum number of 29 candidates, followed by 24 in Bangalore Central, and Dakshina Kannada has the least number at nine.

JD(S) leader H D Kumaraswamy from Mandya, his brother-in-law and noted cardiologist C N Manjunath from Bangalore Rural on a BJP ticket against Deputy CM D K Shivakumar's brother and MP D K Suresh of Congress, and erstwhile Mysuru royal family scion Yaduveer Krishnadatta Chamaraja Wadiyar from Mysore, from the BJP, are among the prominent candidates in the fray in the first phase.

Also in the contest are BJP MP Tejasvi Surya from Bangalore South pitted against Minister Ramalinga Reddy's daughter Sowmya Reddy of Congress, and Union Minister Shobha Karandlaje on BJP ticket from Bangalore North against former Indian Institute of Management Bangalore professor M V Rajeev Gowda of Congress.

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News Network
April 25,2024

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Bengaluru: The Congress and BJP will lock horns on the electoral battleground again, in less than a year, in Karnataka as the stage is set for voting in the first phase in 14 Lok Sabha seats on Friday.

It's going to be a straight fight between the ruling Congress and the BJP-JD(S) combine unlike the Assembly elections in May last year which witnessed a triangular contest among the three parties.

The state has a total of 28 Lok Sabha constituencies. The second phase of polling in the remaining 14 seats is on May seven.

A total of 247 candidates -- 226 men and 21 women -- are in the fray for the first phase in most of the southern and coastal districts.

More than 2.88 crore voters are eligible to exercise their franchise in 30,602 polling stations where polling will take place between 7 am to 6 pm.

While the Congress is contesting in all 14 seats, BJP has fielded nominees in 11 and its alliance partner JD(S), which joined the National Democratic Alliance (NDA) in three -- Hassan, Mandya and Kolar.

Besides the three, the segments where elections will be held on Friday are: Udupi-Chikmagalur, Dakshina Kannada, Chitradurga, Tumkur, Mysore, Chamarajanagar, Bangalore Rural, Bangalore North, Bangalore Central, Bangalore South and Chikkballapur.

In the 2019 Lok Sabha polls, Congress and JD(S), which were in alliance and ruling the state then, had secured just one seat each in these 14 segments. The BJP had won in 11 and ensured the victory of a party supported independent candidate in Mandya.

Having scored a thumping victory in the Assembly elections, the Congress now appears determined to put up a strong show.

Karnataka is the most important state for the BJP in south India as it's only here that it had held power in the past. 'Its alliance partner JD(S) is fighting to remain politically relevant, after the Assembly poll drubbing,' a political analyst said.

The Old Mysore region is the Vokkaliga heartland and parts of it have been the traditional bastion of the JDS.  However, the current elections are a battle for survival for JDS.

According to Karnataka Chief Electoral Officer Manoj Kumar Meena, 1.4 lakh polling officials will be on duty for the first phase.

Besides them, 5,000 micro-observers, 50,000 civil police personnel, 65 companies of Central Parliamentary Force and State Armed Police force of other States will also be deployed for security.

All the 2,829 polling stations of Bangalore Rural parliamentary constituency will be webcast, Meena said.

'This is as per the request of our returning officers and observers; so we have given more than double the Central parliamentary force for Bangalore Rural constituency. Seven companies of Central paramilitary forces have been inducted at the constituency since April 22,' he told reporters on Wednesday.

In fact, out of the total 30,602 polling stations in the first phase, 19,701 will be webcast, and 1,370 covered via CCTVs, he said.

Chikkaballapur has a maximum number of 29 candidates, followed by 24 in Bangalore Central, and Dakshina Kannada has the least number - nine.

JD(S) leader H D Kumaraswamy from Mandya, his brother-in-law and noted cardiologist C N Manjunath from Bangalore Rural on a BJP ticket, erstwhile Mysuru royal family scion Yaduveer Krishnadatta Chamaraja Wadiyar from Mysore, also from the BJP, and Deputy Chief Minister D K Shivakumar's brother and MP D K Suresh of Congress from Bangalore Rural, are among the prominent candidates in the fray in the first phase.

Also in the fray are BJP MP Tejasvi Surya from Bangalore South against Minister Ramalinga Reddy's daughter Sowmya Reddy of Congress, Union Minister Shobha Karandlaje on BJP ticket from Bangalore North against former IIM Bangalore professor M V Rajeev Gowda of Congress.

The Congress' performance in the elections, especially in the first phase which covers almost all Vokkaliga-dominated districts, is being seen as a big test of sorts for its state unit chief Shivakumar, who has made no secret of his ambition to become chief minister, amid speculations of change in guard mid-way of the Assembly term.

Stakes are also high for Chief Minister Siddaramaiah, as victory in particular in his home turf—Mysore and Chamarajanagar—is seen as key for strengthening hands, analysts say.

For the JD(S) and its state chief Kumaraswamy, the task is cut out -- to prove that the regional party is still a force to reckon with, particularly in the Vokkaliga dominated Old Mysuru or South Karnataka region.

Both Shivakumar and Kumaraswamy are Vokkaligas, and are engaged in a fierce turf war to consolidate their clout over the dominant community.

It is also seen as a kind of a 'litmus test' for state BJP president B Y Vijayendra, who has the onerous task of helping the party retain its supremacy in the Lok Sabha elections.

Ensuring a BJP sweep is paramount for the son of veteran leader B S Yediyurappa, to consolidate his position and silence critics who have questioned his selection for the post, overlooking seniors and seasoned hands.

The ruling Congress is mostly banking on the implementation of its populist five guarantee schemes. The BJP and JD(S) seem to be leveraging the 'Modi factor' to the hilt.

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May 4,2024

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Mangaluru, May 4: A tragic incident unfurled last evening in Subrahmanya of Kadaba taluk in Dakshina Kananda, where a young gentleman, who had recently entered the bonds of matrimony a mere ten days hence, met his untimely demise due to a lightning strike.

As twilight descended, a tempestuous thunderstorm, accompanied by billowing rain clouds, cast its shadow over the locale.

Somasundar was diligently engaged in the task of piling up dried nuts in the yard to shield them from the impending deluge, when fate cruelly intervened, subjecting him to the fatal force of a lightning bolt.

Despite the expeditious efforts to convey him to Kadaba Community Hospital subsequent to his sudden indisposition, he tragically succumbed to his injuries. 

Somasundar, who operated a car washing enterprise in proximity to Subrahmanya, is mourned by his mother, sister, and wife.

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